Pipes and Cistern - Quantitative Aptitude (MCQ) questions for Q. 51

Q.  A pipe is 30 m long and is 45% longer than another pipe. Find the length of the other pipe.
- Published on 12 Jun 15

a. 20.68
b. 20
c. 20.12
d. 20.5

ANSWER: 20.68
 
Let length of other pipe be X
According to question,
30 = 45/100 X + X
30 = 0.45X + X
30 = 1.45 X
X= 30/1.45
X = 20.68m

Thus the length of the other pipe is 20.68 metres.

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