Aptitude · all questions

Chain Rule
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66

Questions

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Q21

On a certain map of India the actual distance of 1450 km between two cities Delhi and Kolkata is shown as 5 cm. What scale is used to draw the map ?

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Q22

A flagstaff 17.5 m high caste a shadow of length 40.25 m. The height of the building, which casts a shadow of length 28.75 m under similar conditions will be ?

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Q23

A man completes

\frac{5}{8}

of a job in 10 days. At this rate, how many more days will it take him to finish the job ?

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Q24

56 men can complete a piece of work in 24 days. In how many days can 42 men complete the same piece of work ?

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Q25

30 men can do a piece of work in 16 days. How many men would be required to do the same work in 20 days ?

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Q26

4 mat-weavers can weave 4 mats in 4 days. At the same rate, how many mats would be woven by 8 mat-weavers in 8 days ?

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Q27

If 7 maids with 7 mops cleaned 7 floors in 7 hours, how long would it take 3 maids to mop 3 floors with 3 mops ?

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Q28

Four gardeners with four grass mowers mow 400 sq. m of ground in 4 hours. How long would it take for eight gardeners with eight grass mowers to mow 800 sq. m of ground ?

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Q29

Running at the same constant rate, 6 identical machines can produce a total of 180 bottles per hour. How many bottles could 15 such machines produce on 30 minutes ?

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Q30

If 6 persons working 8 hours a day earn Rs. 8400 per week, then 9 persons working 6 hours a day will earn per week ?

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Q31

If 5 workers can collect 60 kg wheat in 3 days, how many kilograms of wheat will 8 workers collect in 5 days ?

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Q32

50 people consume 350 kg of rice in 30 days. In how many days will 35 people consume 50 kg of rice ?

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Q33

Working 8 hours a day, 12 men can do a work in 30 days. Working 4 hours a day, 18 men can do work in ?

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Q34

5 persons can prepare an admission list in 8 days working 7 hours a day. If 2 persons join them so as to complete the work in 4 days, they need to work per day for ?

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Q35

4 persons can prepare an admission list in 8 days working 7 hours a day. If 3 persons join them so as to complete the work in 4 days, they need to work per day for ?

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Q36

3 pumps , working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day ?

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Q37

If 5 men or 7 women can earn Rs. 5250 per day, how much would 7 men and 13 women earn per day ?

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Q38

3 men or 6 women can do a piece of work in 20 days. In how days will 12 men and 8 women do the same work ?

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Q39

49 pumps can empty a reservoir in

6 \frac{1}{2}

days, working 8 hours a day. If 196 pumps are used for 5 hours each day, then the same work will be complete in ?

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Q40

30 labourers working 7 hours a day can finish a piece of work in 18 days. If the labourers work 6 hours a day, then the number of labourers to finish the same piece of work in 30 days, will be ?

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