## 66th SSC CGL level Question Set, 5th on topics Time-Work, Work-Wages, and Pipes-Cisterns

This is the 66th question set of 10 practice problem exercise for SSC CGL exam and 5th on related topics Time-Work, Work-Wages, Pipes-Cisterns. Students must complete this question set in prescribed time first and then only refer to the corresponding solution set for gaining maximum benefits from this resource.

Before taking up the test, you should go through our sessions on * How to solve Time and work problems in simpler steps type-1* and

*for detailed explanation of the efficient time and work problem solving techniques that will form the base for solving this present set of 10 problems.*

**How to solve more time and work problems in simpler steps type-2**The answers to the questions are in the corresponding solution set referred at the end.

### 66th question set - 10 problems for SSC CGL exam: 5th on topics Time-Work, Work-Wages, and Pipes-Cisterns - time 12 mins

**Problem 1.**

A pipe takes 36 hours more than its normal time of filling a cistern due to a leak at the bottom of the cistern. If the pipe inflow rate is double the leak outflow rate, how many hours would the pipe alone take to fill the cistern completely without the leak?

- 30
- 18
- 24
- 36

**Problem 2.**

A and B working alone 7 hours a day can complete a job in 8 days and 6 days respectively. In how many days would they finish the job if they work together 8 hours per day?

- 2.5
- 3
- 3.6
- 4

**Problem 3.**

If 8 men working together 8 hours per day for 8 days produce 8 units of work, the units of work produced by 4 men working together 4 hours per day for 4 days is,

- $1$
- $4$
- $\displaystyle\frac{1}{2}$
- $\displaystyle\frac{1}{4}$

**Problem 4.**

A can do a job in 20 days, while A and B together do it in 15 days. If they are paid Rs.400 for the job, what is the share of B?

- Rs.300; Rs.100
- Rs.350; Rs.50
- Rs.150; Rs.250
- Rs.200; Rs.200

**Problem 5.**

A cistern is filled up by two inlet pipes, working separately, in 30 mins and 20 mins respectively, while it is filled up in 18 mins with both pipes working together but the second pipe closed off after some time. After how much time is the second pipe closed?

- 12 mins
- 8 mins
- 5 mins
- 10 mins

#### Problem 6.

Working 9 hours a day for 20 days a team of 8 men finish a job completely. How many days would a team of 7 men take to complete the same job working for 10 hours a day?

- $20\displaystyle\frac{4}{7}$
- $20\displaystyle\frac{1}{2}$
- $20\displaystyle\frac{3}{5}$
- $20\displaystyle\frac{3}{7}$

** Problem 7.**

Three inlet pipes to a cistern with diameters $2$cm, $1$cm and $1\displaystyle\frac{1}{3}$cm fill the cistern with inflow rate of each pipe poroportional to the square of its diameter. If the pipe with the largest diameter can fill the cistern working alone in 61 mins, how much time will be taken by the three pipes to fill the cistern working together?

- 36 mins
- 32 mins
- 38 mins
- 34 mins

** Problem 8.**

In 18 days, working together, A, B and C earn a sum of Rs.2700. If on the same job, B and C together earn Rs.1520 in 20 days and, C and A together earn Rs.940 in 10 days, how much does C earn in a day?

- Rs.40
- Rs.15
- Rs.10
- Rs.20

**Problem 9.**

Working 6 hours a day, 12 pumps can empty a completely filled reservoir in 15 days. How many such pumps working 9 hours a day can empty the same completely filled reservoir in 12 days?

- 10
- 9
- 15
- 12

** Problem 10.**

A cistern is filled by three inlet pipes A, B, and C working together for 6 hours. Once, after the three work together for 2 hours, the pipe C is closed and then on, the pipes A and B fill the remaining part in 7 hours. How much is then the time taken by C alone to fill the cistern?

- 16 hours
- 10 hours
- 12 hours
- 14 hours

Refer to * SSC CGL level Solution Set 66 on Time-work Work-wages Pipes-cisterns 5* for answers and detailed solutions.

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