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objective Ques (30 results)
11)

To do a certain work, the ratio of the efficiencies of X and Y is 5 : 4. Working together, they can complete the same work in 10 days. Y alone starts the work and leaves after 5 days. The remaining work will be completed by X alone in:

SSC CGL 2019
A)

14 days

B)

12 days

C)

15 days

D)

10 days

12)

A can do 40% of a work in 12 days, whereas B can do 60% of the same work in 15 days. Both work together for 10 days. C completes the remaining work alone in 4 days. A, B and C together will complete 28% of the same work in :

SSC CGL 2019
A)

\(2\frac{1}{2}\) days

B)

3 days

C)

\(1\frac{1}{2}\) days

D)

2 days

13)

A, B and C can individually complete a task in 24 days,16 days and 32 days respectively. If A and C start the work and worked for 6 days and left, then the number of days required by B to complete the remaining task, is :

SSC CGL 2020
A)

9

B)

\(7\frac{1}{2}\)

C)

\(17\frac{1}{2}\)

D)

\(12\frac{1}{2}\)

14)

Eight persons can finish a work in 20 days. After 5 days they were requested to complete the work in the next 8 days. How many more persons should join the group to fulfil the requirement?

SSC CGL 2020
A)

23

B)

12

C)

15

D)

7

15)

A can do a piece of work in 6 days. B can do it in 9 days. With the assistance of C they completed the work in 3 days. In how many days can C alone do the work ?

SSC CGL 2020
A)

18

B)

12

C)

16

D)

8

16)

If 18 men can cut a field in 35 days, then in how many days can 21 men cut the same field?

SSC CGL 2020
A)

32

B)

27

C)

28

D)

30

17)

A contract is to be completed in 75 days and 187 men are to work 15 hours per day. After 65 days, \(2\over5\) of the work is completed. How many additional men should be employed, so that the work is completed in time, each man now working 17 hours per day?

SSC CGL 2020
A)

528

B)

495

C)

514

D)

532

18)

Ten men or twelve women can finish the same work in 10 days. If 5 men and 2 women undertake the work together, how many days will they take to complete the work?

SSC CGL 2020
A)

15

B)

40

C)

20

D)

60

19)

A, B and C can individually complete a task in 20 days, 16 days and 30 days, respectively. If A and B started working on the task, and they worked for 4 days and left, then the number of days required by C to finish the remaining task is:

SSC CGL 2020
A)

13 days

B)

\(16 \frac{1}{2}\) days

C)

\(12 \frac{1}{2}\) days

D)

10 days

20)

Amit and Sunil together can complete a work in 9 days, Sunil and Dinesh together can complete the same work in 12 days, and Amit and Dinesh together can complete the same work in 18 days. In how many days will they complete the work if Amit, Sunil and Dinesh work together?

SSC CGL 2020
A)

14 days

B)

16 days

C)

8 days

D)

12 days

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