Samsung Mathematical aptitude question - placement paper

Samsung Mathematical aptitude question - placement paper

Q. Assume it costs x dollars for making a certain item. If we require 1000 such pieces then price is x dollars but on increasing the number of pieces the price changes to y dollars. If z

number of items are made, z>1000, calculate the total cost?

Ans. 1000(x-y) +yz

Q. A is 10 km from B and C is 17 km from B. The correct option is?
A) A is in between B and C.
B) B is in between A and C
C) C is in between A and B
D) A and B

Answer: D

Q. A and B are two stations 330km apart. A train starts from A at 8pm and travels toward B at 60kmph. Another train starts from B at 9pm and travels towards A at 75 kmph. At what time do they

meet?
A) 11 am
B) 12pm
C) 11.30am
D) 11.45am
Answer: A

Q. What investment should be made in order to obtain an income of Rs. 650 from 10% stock at Rs. 96
A) Rs. 3100
B) Rs. 6240
C) Rs. 6500
D) Rs. 9600

Answer: B

Q. What is the market value of each share for a man if he buys Rs. 20 shares paying 9% dividend and wants to have an interest of 12% on his money.
A) Rs. 12
B) Rs. 15
C) Rs. 18
D) Rs. 21

Answer: B

Q. A certain jar contains 60 jelly beans — 22 white, 18 green, 11 yellow, 5 red and 4 purple. If a jelly bean is to be chosen at random, what is the probability that the jelly bean will be

neither red nor purple?

A) 0.09
B) 0.15
C) 0.54
D) 0.85
E) 0.91

Answer: D

Q. If length of a rectangle of increases by 20% and breadth decreases by 20%. Then the area
A. decreases by 4%
B. increases by 4%
C. none

Answer: A