Discussion

Explanation:

18 men in 10 hours make 168 wood chairs i.e. work done by 18 men in 10 hours is 168.

After 3 men leave, total number of men = 18 – 3 = 15

Let 15 men make x chairs in 8 hours.

$\frac{M_1{H}_1}{W_1}=\frac{M_2{H}_2}{W_2}$

∴ $\frac{18\times 10}{168}=\frac{15\times 8}{x}$

∴ x = 112 chairs

Hence, option (d).

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