Time and Work - Quantitative Aptitude (MCQ) questions

1)   P and Q can do a work in 12 days. Q and R can do the same work in 16 days, and R and P can do it in 24 days. Find the time in which P, Q and R can finish the work together.
- Published on 17 Mar 17

a. 9(3/4) days
b. 10 days
c. 11(1/4) days
d. 10(2/3) days
Answer  Explanation 

ANSWER: 10(2/3) days

Explanation:
work and time


2)   P and Q together can do a work in 18 days. P alone can do the same work in 27 days. In how many days can Q alone do the same work?
- Published on 15 Mar 17

a. 54 days
b. 36 days
c. 45 days
d. 9 days
Answer  Explanation 

ANSWER: 54 days

Explanation:
work and time


3)   When P alone does a work, he takes 25 days more than the time taken by P and Q working together to complete the work. But Q alone takes 9 days more than the time taken by P and Q working together to complete the work. In what time, P and Q together finish this work?
- Published on 15 Mar 17

a. 18 days
b. 20 days
c. 25 days
d. 15 days
Answer  Explanation 

ANSWER: 15 days

Explanation:
work and time


4)   A can do a work in 3 days. B can do the same work in 6 days and C can do the same work in 7 days. If they work together, in how many days will they take to complete the work?
- Published on 15 Mar 17

a. 11/10 Days
b. 15/16 Days
c. 14/9 Days
d. 16/7 Days
Answer  Explanation 

ANSWER: 14/9 Days

Explanation:
work and time


5)   Sita and Gita can do a work in 20 days and 25 days, respectively. Both begin together but after a few days, Sita leaves. Then Gita finishes the remaining work in 10 days. After how many days did Sita leave?
- Published on 15 Mar 17

a. 6(2/3) Days
b. 5 Days
c. 8(1/5) Days
d. 10(2/5) Days
Answer  Explanation 

ANSWER: 6(2/3) Days

Explanation:
work and time


6)   35 men can make 70 toys in 8 days by working 8 hours a day. How many days will 56 men need to make 84 toys by working 12 hours every day?
- Published on 15 Mar 17

a. 6 days
b. 4 days
c. 2 days
d. 3 days
Answer  Explanation 

ANSWER: 4 days

Explanation:
work and time


7)   Meena can do a piece of work in 20 days. Kumar can do it in 30 days. They start working together on the work but 10 days before the completion of the work, Kumar leaves. In how many days does the total work get completed?
- Published on 10 Mar 17

a. 20 days
b. 12 days
c. 6 days
d. 16 days
Answer  Explanation 

ANSWER: 16 days

Explanation:
work and time


8)   If 24 men can finish a work in 10 days, then find the number of days required to complete the same work by 30 men?
- Published on 10 Mar 17

a. 8 days
b. 6 days
c. 3 days
d. 7.5 days
Answer  Explanation 

ANSWER: 8 days

Explanation:
work and time


9)   If 3 men can do a work in 2 days and 4 boys can do the same work in 6 days, then in how many days will the same work be completed by 8 men and 8 boys?
- Published on 10 Mar 17

a. 2 days
b. 3/5 Days
c. 1.5 Days
d. 3/4 Days
Answer  Explanation 

ANSWER: 3/5 Days

Explanation:
work and time


10)   A can work 5 times faster than B and takes 60 days less than B to complete the work. In how many days does A and B individually can complete the work?
- Published on 10 Mar 17

a. A = 20 days; B = 100 days
b. A = 20 days; B = 80 days
c. A = 15 days; B = 75 days
d. A = 10 days; B = 50 days
Answer  Explanation 

ANSWER: A = 15 days; B = 75 days

Explanation:
work and time


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