Question

8 men dig a trench in 16 days how long will 10 men take to dig it​

Answer 1

let the number of days be A

Now , by unitary method,

8 x 16 = 10 x A

A = 12.8 days is the correct answer

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Answer 2

8 men = 16 days

10 men = ?

1 men = 16 = 2 =2

4 1

10 men = 10×2

= 20 days

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