Subject
Quantitative Aptitude
Topic
Unitary Method
12 men and 18 boys, working hours a day, can do a piece if work in 60 days. If a man works in 50 days, working 9 hours a day ?
12 men and 18 boys, working hours a day, can do a piece if work in 60 days. If a man works in 50 days, working 9 hours a day ?
ক)
40খ)
50গ)
42ঘ)
26Explanation
Solution: So twice the work requires twice the boys total boys require = 42 2 = 84 Now, 21 men can work 21 2 = 42 boys So, number of boys to help 21 men is 84 - 42 = 42Related questions
A signed a contract for building a road of 1920 meters long within 120 days. He employed 160 workers for this task. But after 24 days he found that only 1/8 of the task has been finished. If A want to finish the road in time how many additional workers he has to employee ?A contract is to be completed in 46 days and 117 men were set to work, each working 8 hours a day. After 33 days, 4/7 of the work is completed. How many additional men may be employed so that the work may be completed in time, each man now working 9 hours a day ?John appointed 25 persons to complete a small bridge in 40 days. After 20 days he appointed 15 more workers and the bridge was completed 5 days earlier. If he had not appointed additional workers by how many days he would have been behind the scheduled time ?
