Time and Work SSC CHSL Questions

SSC CHSL-Quantitative Aptitude
Time and Work

Time and Work MCQ Questions


1.
Varun and Syan can do a work in 3 days, Syan and Anil can do it in 4 days, and Anil and Varun can do it in 6 days. How many days will Anil alone take to do the work?
SSC CHSL 2021-12.04.2021-2
A.
22
B.
18
C.
20
D.
24
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ANSWER :
D. 24
2.
Working together, A, B and C can finish a piece of work in 3 hours. A finishes the same work in 8 hours and B finishes it in 6 hours. How long will it take for C alone to finish the same work?
SSC CHSL 2021-12.04.2021-3
A.
24 hours
B.
15 hours
C.
12 hours
D.
18 hours
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ANSWER :
A. 24 hours
3.

A and B can complete a certain work in 6 days and 8 days, respectively. They worked together for 3 days. C alone completed the remaining work in 2 days. B and C together can complete \(\dfrac{3}{4}\) of the same work in:


SSC CHSL 2021-13.04.2021-1
A.

2 days

B.

3 days

C.

6 days

D.

4 days

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ANSWER :

D. 4 days

4.
A and B can complete a work in 80 days and 96 days, respectively. They completed the work in 32 days with the help of C. How many days will C take to complete the entire work alone?
SSC CHSL 2021-13.04.2021-2
A.
108
B.
92
C.
120
D.
84
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ANSWER :
C. 120
5.

A can do a work in \(7\dfrac{1}{2}\) hours and B can do the same work in \(10\dfrac{1}{2}\) hours. If they work together for \(3\dfrac{1}{2}\) hours, then what part of the work will be left out?


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A.

\(\dfrac{3}{5}\)

B.

\(\dfrac{4}{5}\)

C.

\(\dfrac{1}{5}\)

D.

\(\dfrac{2}{5}\)

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ANSWER :

C. \(\dfrac{1}{5}\)

6.
24 persons can do a piece of work in 20 days. In how many days can 30 persons do the same work?
SSC CHSL 2021-15.04.2021-1
A.
16
B.
14
C.
18
D.
12
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ANSWER :
A. 16
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