SATHEE: Quantitative Aptitude Ques 433

Quantitative Aptitude Ques 433

Question: A can do $ \frac{5}{8}th $ part of a work in. 15 days. Remaining work is done by B in 12 days. Then in how many days will A and B do same work by working together?

Options:

A) $ 11\frac{5}{7}days $

B) $ 12\frac{5}{7}days $

C) $ 13\frac{5}{7}days $

D) $ 14\frac{5}{7}days $

Show Answer

Answer:

Correct Answer: C

Solution:

Time taken by A to complete $ \frac{5}{8}th $ part of a work =15 days

$ \therefore $ One day work of $ A=\frac{1}{15}\times \frac{5}{8}=\frac{1}{24} $ Time takes by B to complete $ \frac{3}{8}th $ of work = 12 days.

$ \therefore $ One day work of $ B=\frac{3}{8}\times \frac{1}{12}=\frac{1}{32} $ Together A and B one day work $ =\frac{1}{24}+\frac{1}{32} $ $ =\frac{4+3}{96}=\frac{7}{96} $ Hence, they will take $ \frac{96}{7}=13\frac{5}{7}days $ to complete the work together.

Quantitative Aptitude Ques 432

Quantitative Aptitude Ques 434

Quantitative Aptitude Ques 433

Question: A can do $ \frac{5}{8}th $ part of a work in. 15 days. Remaining work is done by B in 12 days. Then in how many days will A and B do same work by working together?

Options:

Answer:

Solution:

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