Question

25 men are employed to do a piece of work in 24 days. after 15 days, 10 more men are engaged and the work was finished a day earlier than actually planned. in what time could they finish the work if extra men are not employed ?

Answer 1

let a man completes 1 work in a day

so 25 men completes 25 work in one day

in 15 days , they finishes the work = 25×15 = 375

10 more men joins


so now men are 35

remaining work completed in 8 days

so quantity of remaining work is = 35 ×8= 280


so total work is 375+280= 655

if extra men aren't appointed then 25 men themselves completes the work in = 280/25

= 11.2 days

Answer 2

Answer:

26.2 days

Step-by-step explanation:

work done by 25 men in 15 days = 25*15

work done after 10 men joins = (25+10)*(23-15)

actual work done = (25*15)+{(25+10)*8} = 655 man days

time required by 25 men to complete this work is =

655/25 days = 26.2 days answer