Chain Rule Questions

• If the price of 23 toys is 276, then what will the price of 12 toys ?
• If 20 men can build a wall 56 meters long in 6 days , what length of a similar wall can be built by 35 men in 3 days?
• A certain number of men can finish a piece of work in 100 days. If there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally?
• If 36 men can do a piece of work in 25 hours, in how mwny hours will15 men do it?
• 2 men and 7 boys can do a piece of work in 14 days; 3 men and 8 boys can do the same in 11 days. Then, 8 men and 6 boys can do three times the amount of this work in
• If 7 spiders make 7 webs in 7 days, then 1 spider will make 1 web in how many days?
• A contractor undertakes to do a piece of work in 40 days. He engages 100 men at the begining and 100 more after 35 days and completes the work in stipulated time. If he had not engaged the additional men, how many days behind schedule would it be finished?
• 39 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 6 hours a day, complete the work?
• 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?
• If 18 bindres bind 900 books in 10 days , How many binders will be required to bind 660 books in 12 days?
• 36 men can complete a piece of work in 18 days. In how many days will 27 men complete the same work ?
• If a quarter kg of carrots costs 60 paise, how many paise will 200 gms cost ?
• The sum of 3rd and 15th elements of an arithmetic progression is equal to the sum of 6th, 11th and 13th elements of the same progression. Then which element of the series should necessarily be equal to zero ?
• Some persons can do a piece of work in 12 days. Two times the number of such persons will do half of that work in
• In a queue, Shankar is ninth from the rear end. Althaf's place is eighth from the front. Nitu is standing between the two. What could be the minimum numbers of boys standing in the queue ?
• If a person having Rs. 2000 and he want to distribute this to his five children in the manner that each son having Rs. 30 more than the younger one , what will be the share of youngest child ?
• If 8 men can reap 80 hectares in 24 days , then how many hectares can 36 men reap in 30 days?
• A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, then the number of revolutions mad by the larger wheel is:
• A fort had provision of food for 150 men for 45 days. After 10 days, 25 men left the fort. The number of days for which the remaining food will last, is:
• If the cost of x metres of wire is d rupees, then what is the cost of y metres of wire at the same rate?