Problems on Numbers - Quantitative Aptitude (MCQ) questions for Q. 20788

Q.  If the sum of a number and its square is 272, What is the number?
- Published on 07 Jul 17

a. 14
b. 16
c. 19
d. 21
e. None of these

ANSWER: 16
 
Let the integer be x.
Then, x + x2 = 272
x2 + x - 272 = 0
(x + 17) (x – 16) = 0
x = 16

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