Question

45 men working 8 hours a day can finish a project within a given time. five men are unable to report for the work how long should be rest work a day to finish the project on time

a) 10 hrs

b) 12 hrs

c) 9 hrs

d) 8 hrs

plz show the answer with proper steps..... no silly answers would be accepted

Answer 1

Total work to be done by workers = 45*8
= 360
five men unable to do the work
Workers left = 45-5 = 40
work done by workers = 40*8 = 320
let extra no of hours required to finish the work in time be x
now
New time for which a worker has to work = (8+x)
Total work = no of workers doing the work*no
of hours
360 = 40*(8+x)
360/40 = (8+x)
9 = 8+x. (360/40 = 9)
9-8 = x
x=1
Each worker has to work 1 hour more to finish the work in time
New working time of each worker = 8+x
= 8 + 1 = 9
9 hours is the required answer.

Hope it helps
Brainliest if it helps.

Answer 2

Answer:

9 hours

Step-by-step explanation:

First there were 45 people but 5 left then 40

Total Hours:8

40*8 : 360

and now we simply divide and get the answer

360/40: 9

Do it will take 9 hrs to finish the project

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