Problems on Numbers - Quantitative Aptitude (MCQ) questions for Q. 21149

Q.  What should come in place of the question mark (X) in the following equation ?
60% of X + 2/3 of 39 = 44
- Published on 22 Apr 16

a. 50
b. 60
c. 30
d. 20
e. None of these

ANSWER: 30
 
60% of X + 2/3 of 39 = 44
i.e. 3/5 of X + 2/3 of 39 = 44 (60% = 3/5)
3/5 * X + 2/3 * 39 = 44
3/5 * X + 26 = 44
3/5 * X = 18
X = 18 * 5/3
X = 30

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