Average - Aptitude test questions and answers

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Average - Aptitude test questions and answers


1. Vivek Scored 30, 34, 28, 20, 52 and 46 runs respectively in six innings. What is his average score?

34
35
36
38

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ANSWER: 35





2. In Raj’s Family, there are five members including him. Their ages are 8, 10, 18, 48 and 51 respectively. Find Average age of his family?

27.0
27.2
27.4
28.0

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ANSWER: 27.0





3. In Ravita’s Family, all members are employed and their salaries are 14000,22640,18700,12500 and 36000 p.m. respectively.Find Ravita’s Family Avg. Salary per year is

249216
249261
249316
259216

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ANSWER: 249216





4. Temp. of Mumbai predicted for first week of July are 24, 23, 28, 26, 24, 28 and 32 degree Celsius respectively. Find Avg. Temp for first week of July in Fahrenheit.
(Note: Celsius to Fahrenheit =Multiply by 9,then divide by 5,then add 32)

52.55
98.6
53
73

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ANSWER: 98.6





5. Find the average of all odd numbers between 20 and 64.

42
44
45
45.81

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ANSWER: 42





6. If average of 6, 8, 5, 7, x and 4 is 7. Then find x;

9
8
14
12

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ANSWER: 12




7. Ramesh found that the average of 15 observations is 40. If 10 is added to each observation then the mean of observations is:

50
30
55
40

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ANSWER: 50




8. Harsh found the mean of 50 observations is 200. But later he found that there is decrement of 15 from each observations. Then the updated mean is

215
666.66
155
185

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ANSWER: 185




9. Deepak found that the mean of 200 observations is 12. If each observation is multiplied by 5., what will be the new mean?

30
17
7
60

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ANSWER: 60




10. Gyan found that the mean of 80 numbers is 30. If each observations is divided by 5. Find the new mean?

6
35
31
10

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ANSWER: 6




11. Nilesh Covers journey from P to Q at 80 kmph and returns to P at a uniform speed of 100 kmph. Find the average speed.

85
88.88
90
92

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ANSWER: 88.88




12. In a class of 50 student, 20 are girls and rest are boys. Average weight of Girls and Boys are 45kg and 55 kg respectively. Then the mean weight of entire class in kg is:

50.50
51.50
50.00
51.00

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ANSWER: 51.00




13. A college has four sections in class V having 50 ,45 ,55 and 42 students. The mean marks obtained in English exam are 40, 50, 60 and 45 respectively for the four sections. Find the overall average of the marks .

48.56
49.16
47.36
50.16

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ANSWER: 49.16




14. A helicopter reached destination from source via four stops. Helicopter reached different stops at different speeds 100, 200, 300 and 400 kmph respectively. What is the average speed of the helicopter in its flight from source to destination?

220 kmph
188 kmph
192 kmph
212 kmph

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ANSWER: 192 kmph




15. The average weight of 40 employees is reduced by 1 kg. Among them 10 employees whose average weight is 20 kg are fired and 10 new employees are hired. Find the average weight of new employee.

17 kg
15.50 kg
16.50Kg
16Kg

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ANSWER: 16Kg




16. Mean of first ten even numbers is:

13
15
20
11

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ANSWER: 11




17. Production of wheat in a village is increased from 120 ton to 219 ton in two years. What is the average increase in production per year?

49.50%
34.50%
20%
69%

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ANSWER: 49.50%




18. How much cream milk at Rs. 55 per litre must be mixed with 200 litre of toned milk at Rs. 40 per litre to give an average price of 46 per litre?

8330.33 litre
9320.13 litre
9331.33 litre
9333.33 litre

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ANSWER: 9333.33 litre




19. An athlete runs at u km/h for t1 hrs., v km/h for t2 hrs. Find avg. speed of an athlete for entire lap?

(ut1+vt2)/(t1+t2)
(u+v)t2/(t1)
(t1+vt2)/(u+v)
(u+v)/(t2+t1)

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ANSWER: (ut1+vt2)/(t1+t2)




20. A train covers a km at an average speed of u km/h and b km at an average speed of v km/h. What is the average speed of the train in kmph for entire journey?

(a+b)/(u+v)
uv(a+b)/(av+bu)
au+bv/u+v
(av+bu)/uv(a+b)

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ANSWER: uv(a+b)/(av+bu)




21. Among three people, their ages are as follows; first person is thrice the age of third person and twice that of Second person. The average age of all three persons is 55, the smallest person is _______.

28
15
30
72

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ANSWER: 30




22. On account of 380 observations, first 200 have mean 10 and the average of remaining observations is 20.Find the average of 380 observations?

14.73
14.47
15.50
16

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ANSWER: 14.73




23. Hayden scores 80 runs in his sixth inning and thus increases his average by 5. What was his average after six innings?

60
65
55
58

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ANSWER: 55




24. The average age of 8 boys is 15 yrs and 7 girls is 20 yrs in a class. Find the average age of whole class?

17
18
16.30
17.33

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ANSWER: 17.33




25. The average speed of A ,B and C was 40kmph and for B,C and D it was 44 kmph. If the speed of D is 50kmph. Find the speed of A in Kmph?

36
38
48
43

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ANSWER: 38




26. Ramesh found mean of 5 observations is 25 and when a constant value X is added to each observation, then new mean becomes 38. Find X;

15
13
22
29

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ANSWER: 13




27. Umesh lends 1800 Rs. in four sums. If he gets 3% for Rs. 400, 5% for Rs.500, 7% for Rs. 300 and 6% for Rs.250. What approx. percentage must he get for remainder, if the average interest is 7.5%.?

17. 71%
8.30%
7.25%
17.07%

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ANSWER: 17. 71%




28. The Average Night Temperature for Monday , Tuesday and Wednesday was 26 Degree and for Tue, Wed and Thursday it was 28 Degree. If the night temperature on Thursday was 25 Degree, find the night temperature on Monday.

18
19
17
21

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ANSWER: 19




29. Shyam invested part of Rs. 5000 at 5% and the rest at 8%. If his annual income from both is equal, then find the average rate of interest?

6.15 %
3.07%
15.30%
7.50 %

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ANSWER: 6.15 %




30. In a class test, 30% of the students wrote their solutions in Marathi and the others in English. The Average marks of the students who wrote in Marathi is 64 and the average marks of the students who wrote in English is 68. Find the average marks of all students?

66.80
66
67
67.80

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ANSWER: 66.80


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    Discussion

  • RE: Average - Aptitude test questions and answers -angeline atimango olwoch (06/27/17)
  • very interesting questions
  • RE: Average - Aptitude test questions and answers -saurav (11/17/14)
  • The ratio of the speed of car jeep and tractor is 3:5:2. The speed of the jeep is 250 %of the speed of the tractor which covers 360 km in 12 hr . What is the avg speed of car and jeep together and how?
  • Average - Aptitude test questions and answers -Aptitude test (10/10/13)
  • 31. 5 men visited a bar, 4 of them spent Rs.4000 each over their drinks and the fifth spent Rs. 2000 more than the average of all five. Find the total money spent by them on the drink is?

    4400
    4420
    4280
    22000

    View Answer / Hide Answer

    ANSWER: 22000




    32. 3 men and 5 women visited a hotel. 3 men and 4 women spent Rs.6 each over their meal and the fifth women spent Rs. 1 more than the average of all men and women. Find the average of all men and women?

    48.88
    48
    4.11
    6.11

    View Answer / Hide Answer

    ANSWER: 6.11




    33. The average age of Ram, Mohan and Avani is 18 year. Their ages are in the ratio 4:6:8 respectively. What is the age of the youngest one?

    12
    3
    24
    18

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    ANSWER: 12




    34. A car covers first 39 km of its journey in 45 minutes and the remaining 25 km in 35 minutes. What is the average speed of the car?

    40 kmph
    54kmph
    48kmph
    42 kmph

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    ANSWER: 48kmph




    35. Seven numbers are written in ascending order. The middle number is the average of the seven numbers. The average of the first three larger numbers is 58 and that of three smaller numbers is 24. What is the sum of all seven numbers?

    37.05
    30.75
    10.25
    10

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    ANSWER: 30.75




    36. The mean weight of 120 Employee in a IT department is 80 kg. The mean weight of the managers from the IT department is 90 kg while that of Engineers is 65 kg. What is the number of Engineers in IT Departments?

    72
    48
    60
    180

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    ANSWER: 48




    37. Nitin buys 500 pens at Rs.6 each. He sells 400 of them at Rs. 8 each and the rest at Rs. 30 each. Find his average profit per pen sold?

    2.4
    6.4
    6
    19

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    ANSWER: 6.4




    38. The average age of ‘x’ men and ‘y’ women is ‘a’ years. If the average age of the men is ‘d’ years. Find the average age of women?

    a + ( x(a-d) )/y
    a – (xa +d)/y
    a+ x(d-a)/y
    None of these

    View Answer / Hide Answer

    ANSWER: a + ( x(a-d) )/y




    39. Find the mean of y, y+4, y+8 and y+16.

    (4y+7)
    (4y+28)
    (y+7)
    (y+7)

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    ANSWER: (y+7)




    40. A plane covered the first 40 km of its journey in 20 min and the remaining 30 km in 50 min. Find the average speed of plane in km/h.

    84
    60
    30
    42

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    ANSWER: 84




    41. A motorist travels a distance of 60 km at the rate of 10 kmph,120 km at the rate of 60 kmph and 80 km at the rate of 40 kmph . What is the average speed for the whole journey?

    28
    32
    26
    20

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    ANSWER: 26




    42. If u, v, w, x and y are five consecutive odd numbers, then find the average?

    (u+v+w+x+y)/5
    u+4
    5uvwxy
    None of these

    View Answer / Hide Answer

    ANSWER: u+4




    43. The total of the ages of HR department of 75 employees is 1050 years. The average age of 25 of them is 12 years and that of another 25 is 16 years. Find the average age of the remaining employees.

    12 years
    13 years
    14 years
    15 years

    View Answer / Hide Answer

    ANSWER: 14 years




    44. The average monthly income of a family of four earning members was Rs.16000. Shyam got job abroad and left home, so the average monthly income of the family came down to Rs.15560. What is the monthly income of Shyam?

    17320
    16540
    16450
    15800

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    ANSWER: 17320




    45. The average marks of 65 students in a class were calculated as 150. It was later realized that the marks of one of the students were calculated as 142, whereas his actual marks were 152 .What is the actual average marks of the group of 65 students?(Rounded off to two digits after decimal)

    151.25
    150.15
    151.10
    150.19

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    ANSWER: 150.15




    46. The average marks in Science subject of a class of 20 students is 68. If the marks of two students were misread as 48 and 65 instead of the actual marks 72 and 61 respectively, what would be the correct average?

    67
    68
    69
    70

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    ANSWER: 69




    47. The total marks obtained by a student in English, G.K. and Science together are 120 more than the marks obtained by him in G.K. .What is the average marks obtained by him in English and Science together?

    61
    51
    can’t be determined
    60

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    ANSWER: 60




    48. The ratio of the speeds of a Bike, Car and Bus is 5:9:4. The average speed of the Bike, the Car and the Bus is 72kmph together. What is the average speed of the bike and the Car together?

    84
    78
    can’t be determined
    64

    View Answer / Hide Answer

    ANSWER: 84




    49. The ratio of the speeds of a Car, Jeep and Tractor is 3:5:2. The speed of the jeep is 250% the speed of the tractor, which covers 360 km in 12 hours. What is the Average speed of Car and Jeep together?

    60
    70
    120
    66

    View Answer / Hide Answer

    ANSWER: 60




    50. The average score of Rahul, Manish, and Suresh is 63. Rahul’s score is 15 less than Ajay and 10 more than Manish. If Ajay scored 30 marks more than the average score of Rahul, Manish and Suresh , what is the sum of Manish’s and Suresh’s Scores?

    110
    111
    112
    113

    View Answer / Hide Answer

    ANSWER: 111


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