Time and Work SSC CHSL Questions

SSC CHSL-Quantitative Aptitude

Time and Work MCQ Questions


13.
P and Q can complete a work in 9 days and 15 days, respectively. If they work together for three days, then in how many days will the remaining work be completed by Q alone?
SSC CHSL 2021-19.04.2021-3
A.
8
B.
9
C.
7
D.
12
😑 View Answer Rough Work Error
ANSWER :
C. 7
14.
Tap P can fill a cistern in 6 hours and tap Q can empty the full cistern in 10 hours. If both taps P and Q are kept open simultaneously, then in how many hours will the empty cistern be completely full?
SSC CHSL 2021-04.08.2021-1
A.
15
B.
18
C.
16
D.
12
😑 View Answer Rough Work Error
ANSWER :
A. 15
15.
A is thrice as efficient as B. A takes 24 days less than B to complete a work. If they work together, in how many days will the work be completed?
SSC CHSL 2021-04.08.2021-2
A.
9
B.
12
C.
15
D.
8
😑 View Answer Rough Work Error
ANSWER :
A. 9
16.
A can complete a certain work in 30 days. He started the work. After 4 days, B joined him and the whole work was completed in 10 days from the beginning. B alone can complete one-third of the same work in:
SSC CHSL 2021-04.08.2021-3
A.
6 days
B.
3 days
C.
4 days
D.
2 days
😑 View Answer Rough Work Error
ANSWER :
B. 3 days
17.
A can complete a work in 20 days, while B can complete the same work in 25 days. Both worked together for 10 days and then C alone completed the remaining work in 10 days. In how many days will A, B and C together complete the same work?
SSC CHSL 2021-05.08.2021-1
A.
10 days
B.
5 days
C.
8 days
D.
12 days
😑 View Answer Rough Work Error
ANSWER :
A. 10 days
18.
A can do a piece of work in 12 days. He worked for 6 days and left, and then B finished it in 10 days. If both work together, then in how many days will they finish the same work?
SSC CHSL 2021-06.08.2021-2
A.
9.5
B.
9
C.
7.5
D.
7
😑 View Answer Rough Work Error
ANSWER :
C. 7.5