Quantitative Aptitude Ques 2270
Question: X can do 20% of a work in a day. Y can do 25% of the same work in a day and X, Y and Z together can do 50% of the same work in a day. How many per cent of work can be done by Z in a day?
Options:
A) 5%
B) 7%
C) 10%
D) 13%
Show Answer
Answer:
Correct Answer: A
Solution:
- Per cent of work done by X in a day = 20% Per cent of work done by Y in a day = 25% Total work done by X, Y and Z in a day = 50% $ 20%+25%+Z=50% $ $ Z=50-(45%) $
$ \therefore $ Work done by Z = 5%
BETA
