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# Class 8 mathematics questions and answers on indirect proportion

Class 8 mathematics questions and answers on indirect proportion

Lessons (**24**)

- 1.
To complete a project in 48 days a construction company requires 12 employees. How many more employees would the company require if the projects is to be completed in 36 days?
A. 16
B. 9
C. 4
D. 3

2m 50s - 2.
It takes 8 people 10 days to make 40 sweaters. How many more days would it take 5 people to make the same number of sweaters if they all worked at the same rate?
A. 6
B. 16
C. 26
D. 7

2m 26s - 3.
A certain job is completed by 120 people in 12 days. If only 80 people turned up for the job, how many more days will it take them to complete the job?
A. 4
B. 6
C. 8
D. 18

3m 47s - 4.
Ten men are paid sh 5000 for working 5 days. How much will 8 men get for working 20 days if the payment is at the same rate?
A. Sh 1000
B. Sh 16000
C. Sh 1562.50
D. Sh 25000

4m 29s - 5.
In a factory, 4 machines fill 900 packets of milk in 15 minutes. How many packets will 6 machine fill in the same period?
A. 1440
B. 1350
C. 600
D. 225

2m 1s - 6.
Eight men working at the same rate can unload a lorry in 3 hours. If 2 of the men are absent, how much more time will the unloading take?
A. 21h
B. 9h
C. 4h
D. 1h

2m 55s - 7.
Ten identical taps can fill a tank of water in 8 minutes. How many more such taps would be needed to fill same tank in 5 minutes?
A. 6
B. 16
C. 4
D. 26

2m 19s - 8.
Six people working for 5 days were paid a total of sh 3600. How much more would the same number of people be paid for 12 days?
A. 12240
B. 8640
C. 5040
D. 1440

4m 4s - 9.
Six taps take 5 hours to fill the tank with water. How much longer will 4 similar taps take to fill the tank?
A.# 2frac{1}{2}#
B. # 7frac{1}{2}#
C. # 12frac{1}{2}#
D. 25h

3m 7s - 10.
A contractor hired five people to complete a job in 6 days. Two of the workers did not turn up for the job. How many more days were needed to complete the job?
A. 4
B. 9
C. 10
D. 16

2m 47s - 11.
Fifteen people working at the same rate would complete some work in 10 days. How many days would 6 people need to complete the same work?
A. 4
B. 9
C. 25
D. 150

2m 12s - 12.
A factory hired 48 labourers to complete a job in 24 hours. If the 12 labourers failed to turn up for the job,how many more hours did those who turned up take to complete the job?
A. 8
B. 32
C. 48
D. 72

4m 2s - 13.
A factory hires 12 workers to complete a piece of work in 5 hours. If two of the workers do not turn up, how long will it take to complete
the work?
A. 60h
B. 30h
C. 24h
D. 6h

2m 26s - 14.
Sixteen workers can dig a field in 12 days. How many more workers are required so as to do the work in 8 days?
A. 40
B. 24
C. 8
D. 10

2m 28s - 15.
Forty two men were hired to repair a stretch of road in 14 days. How many more men should be hired if the work was to be finished in 12 days?
A. 6
B. 7
C. 49
D. 91

2m 24s - 16.
Four workers take 10 hours to complete a certain job. How many more workers would be hired in order that they do the same job in 2 hours?
A. 20
B. 24
C. 16

2m 25s - 17.
Eighteen people can take 72 days to complete a piece of work. If 2 of the people did not turn up for the work,how many more days would the remaining number of people, working at the same rate, take to complete the work?
A. 9
B. 81
C. 153
D. 575

3m 14s - 18.
A factory hired 9 people to complete a piece of work in 15 hours. How many more hours did it take them to complete the work if 3 people did not turn up?
A. 30 hours
B. #22frac{1}{2}# hours
C. 5 hours
D. #7frac{1}{2}# hours

4m 14s - 19.
Fifteen painters can paint a number of houses in 12 days. If the number of painters is increased by 5, how many less would it take the painters working at the same rate to paint the houses?
A. 24
B. 9
C. 4
D. 3

3m 8s - 20.
Six men working at the same rate, can complete digging a shamba in 8 days. How many days will it take 4 of the men to complete the same work?
A. 12
B.# 5frac{1}{3}#
C. 4
D. 3

1m 52s - 21.
Sixty people were hired to complete construction of a road in 6 days. Forty of the people did not turn up. How many more days did it take the remaining people to complete the construction?
A. 24
B. 18
C. 12
D. 3

3m 6s - 22.
Six men can complete a job in 20 days. If the men work at the same rate, how many more are needed to complete the job in 12 days?
A. 16
B. 10
C. 8
D. 4

2m 4s - 23.
Two men can complete work on a piece of land in 10 days. How many less days will 5 such men require to complete the work on a piece of land?
A. 4
B. 6
C. 14
D. 15

2m 26s - 24.
Eighteen pupils were given a playground to clear in 1h 40min. If six of the pupils did not turn up, how much longer did it take the rest of the pupils to clear the playground?
A. #33frac{1}{3}#min
B. 50min
C. 2h 30min
D. 3h 20min

6m 47s