CRE 5 - Man Days (single group of people) | Arithmetic - Time & Work
Join our Telegram Channel for CAT/MBA Preparation.
If 10 men can do a piece of work in 8 days, in how many days can 8 men do the same work?
Solution
Discuss
Report15 men can do a piece of work in 56 days. How many men are needed to do the work in 7 days?
- (a)
60
- (b)
120
- (c)
150
- (d)
145
- (e)
180
If 4 men can reap 80 hectares in 48 days, then how many hectares can 24 men reap in 30 days?
If 8 men can cut a number of trees in 24 days by working 6 hours a day, for how many hours a day would 3 men have to work in order to cut thrice the number of trees in 48 days?
- (a)
24 hours
- (b)
20 hours
- (c)
16 hours
- (d)
18 hours
- (e)
22 hours
18 men can make 168 wood chairs in 10 hours. If 3 men leave the job how many chairs will be made in 8 hours?
- (a)
144
- (b)
132
- (c)
120
- (d)
112
- (e)
96
112 boys manufacture 128 toys in a day by working 8 hours; in how many days can 42 boys manufacture 210 toys by working 5 hours a day?
- (a)
2
- (b)
4
- (c)
7
- (d)
10
- (e)
14
A certain number of men can finish a piece of work in 20 days. If however there were 10 men less it will take 20 days more for the work to be finished. How many men were there originally?
- (a)
25
- (b)
13
- (c)
15
- (d)
20
- (e)
None of these
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 in 30 minutes?
- (a)
225
- (b)
300
- (c)
250
- (d)
350
If 10 men can dig a well in 7 days by working 12 hours a day. What is the number of men required to dig a well in 4 days by working 14 hours a day?
- (a)
15
- (b)
10
- (c)
12
- (d)
8
- (e)
6
If 90 women working 9 hours a day can do a piece of work in 18 days, in how many days will 54 women working 6 hours a day do the same work?
- (a)
15 days
- (b)
24 days
- (c)
30 days
- (d)
36 days
- (e)
45 days
In a hospital there is sufficient food for its 900 patients for 60 days. After 40 days, 400 patients are discharged from the hospital and no new ones are added. For how many extra days will the rest of the food last for the remaining patients if each patient consumed the same amount of food?
- (a)
14 days
- (b)
2 days
- (c)
12 days
- (d)
16 days
- (e)
6 days
During a severe draught, a society of 280 members had sufficient water stored for 180 days. After 100 days 40 new members joined the society. For how many days after the 40 new members joined the society would the rest of the water be sufficient assuming everyone consumed the same amount of water?
- (a)
44 days
- (b)
50 days
- (c)
56 days
- (d)
64 days
- (e)
70 days
If 16 men, working for 4 hrs per day for 8 days get 80/- then how many men required if the work is 6 hrs per day for 16 days they get 120/-?
- (a)
9
- (b)
7
- (c)
6
- (d)
8
- (e)
10