Let N men are allowed to go off,
M1= 90, D1 = 25, D2 = 15
W1 = 2/3, W2 = 1 - (2/3) = 1/3
M2 = 90 - N
According to the formula, M1D1W2 = M2D2W1
? (90 x 25) (1/3) = (90 - N) x 15 x (2/3)
? 90 x 25 x (1/3) = 10(90 - N)
? 75 = 90 - N
? N = 90 - 75 = 15
We have the important relation, More work, More time (days)
? A piece of work can be done in 6 days.
? Three times of work of same type can be done in 6 x 3
= 18 days
? = 750.0003 ÷ 19.999
? ? ? 750 ÷ 20
? ? ? 375 ? 38
Subtract 20, 25, 30, 35, 40, 45 from successive numbers. So 0 is wrong.
NA
Each previous number is multiplied by 2.
? 8 m shadow means original height = 12 m
? 1 m shadow means original height = 12/8 m
? 100 m shadow means original height = (12/8) x 100 m
= (6/4) x 100 = 6 x 25 = 150 m
Let 8% of 96 = y of 1/25
? (8 x 96)/100 = y/25
? y = (8 x 96 x 25)/100 = 192
Since the principal is not given, so data is inadequate.
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