Time and Work Quiz Set 018

Advertisement


Your Score
Correct Answers:
Wrong Answers:
Unattempted:

Question 1

Mr. X can finish a task in 9 days. Mr. Y can do the same work in 5 days. What is the ratio of the efficiencies of X : Y?

 A

${5/9}$.

 B

$1{5/9}$.

 C

${5/8}$.

 D

${3/5}$.

Soln.
Ans: a

The efficiency of X is $100/9$%, and the efficiency of Y is $100/5$%, so the ratio will be $5/9$


Question 2

A can harvest a field in 18 days. B can do the same work in 11 days. How much did A get if the farmer pays them a total amount of Rs. 7200 for a work that they together completed in 6 days?

 A

Rs. 2400.

 B

Rs. 2500.

 C

Rs. 2300.

 D

Rs. 2700.

Soln.
Ans: a

Work done by A in 1 day = $1/18$. So the work in 6 days = 6 × $1/18$. His share is Rs. 6 × $1/18$ × 7200 = Rs. 2400.


Question 3

A can finish a work in 5 days. B can do the same work in 7 days. They work together for 2 days. The fraction of work that is left is?

 A

${11/35}$.

 B

$1{11/35}$.

 C

${11/34}$.

 D

${1/3}$.

Soln.
Ans: a

They together finish $1/5 + 1/7$ work in a day. In 2 days they finish 2 × $(1/5 + 1/7)$ work, which is $24/35$. So the un-finished work is 1 - $24/35$ = ${11/35}$.


Question 4

A and B can together complete a job in 10 days. A can alone complete it in 15 days. How long would B alone take to finish the job?

 A

30 days.

 B

31 days.

 C

29 days.

 D

33 days.

Soln.
Ans: a

One day work of A + B is $1/10$. One day work of A is $1/15$. So one day work of B, say, $1/y$ = $1/10$ - $1/15$. Solving, we get y = 30 days.


Question 5

A can finish a work in 12 days. B can do the same work in 13 days. They work together for 4 days. The fraction of work that is left is?

 A

${14/39}$.

 B

$1{14/39}$.

 C

${7/19}$.

 D

${3/8}$.

Soln.
Ans: a

They together finish $1/12 + 1/13$ work in a day. In 4 days they finish 4 × $(1/12 + 1/13)$ work, which is $100/156$. So the un-finished work is 1 - $100/156$ = ${14/39}$.


buy aptitude video tutorials


Creative Commons License
This Blog Post/Article "Time and Work Quiz Set 018" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Updated on 2017-05-17.

Posted by Parveen(Hoven),
Aptitude Trainer


Advertisement