Problems on Numbers - Quantitative Aptitude (MCQ) questions for Q. 20890

Q.  A number is doubled and 5 is added. If the resultant is trebled, it becomes 105. What is that number?
- Published on 12 Apr 16

a. 9
b. 15
c. 18
d. None of these

ANSWER: 15
 
Let the number be x.
Therefore,
3(2x + 5) = 105
6x + 15 = 105
6x = 90
x = 15

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