Math, asked by sohailahmed4, 10 hours ago

4. If 10 men, working 7 hours a day dig. 7 a trench 147m long, how many men working 8 hours a day will dig a tread 8 168m long of the same depth and breadh as the first in the same number of day?​

Answers

Answered by Anonymous
0

Answer:

Working 7 hours a day 147 m long trench can be dig by = 10 men

Working 1 hour a day 147m long trench can be dig by = 10∗7

working 1 hour a day 1 m long trench can be dig by = 10∗7/147

working 8 hours a day 1 m long trench be dig by = 10×7/147×8

working 8 hours a day 160 m long trench can be dig by =

147×8

10×7×160

=9.523

So, 10 members are required

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