Advertisements
Advertisements
प्रश्न
If 15 men can complete a piece of work in 30 days, in how many days will 18 men complete it?
Advertisements
उत्तर
Since 15 men can complete a piece of work in = 30 days
∴ 1 man can do the work in = 30 × 15 days
∴ 18 men can do the work in =`(30xx15)/18=(5xx15)/3`
= 5 × 5 = 25 days
Hence 18 men can do the work in 25 days.
APPEARS IN
संबंधित प्रश्न
36 men can do a piece of work in 7 days. How many men will do the same work in 42 days?
12 pipes, all of the same size, fill a tank in 42 minutes. How long will it take to fill the same tank, if 21 pipes of the same size are used?
If 56 workers can build a wall in 180 hours, how many workers will be required to do the same work in 70 hours?
In order to complete a work in 28 days, 60 men are required. How many men will be required if the same work is to be completed in 40 days?
If 3 men or 6 boys can finish a work in 20 days, how long will 4 men and 12 boys take to finish the same work?
A contractor undertakes to dig a canal, 6 kilometers long, in 35 days and employed 90 men. He finds that after 20 days only 2 km of the canal has been completed. How many more men must be employed to finish the work on time?
90 men can complete a work in 24 days working 8 hours a day. How many men are required to complete the same work in 18 days working `7 1/2` hours a day?
Twelve typists, all working with the same speed, type a certain number of pages in 18 days working 8 hours a day. Find, how many hours per day must sixteen typists work in order to type the same number of pages in 9 days?
A can do a work in 15 days and B in 20 days. If they together work on it for 4 days; what fraction of the work will be left?
A and B complete a piece of work in 24 days. B and C do the same work in 36 days; and A, B, and C together finish it in 18 days. In how many days will:
(i) A alone,
(ii) C alone,
(iii) A and C together, complete the work?
