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If 10 men or 20 boys can make 260 mats in 20 days, then how many mats will be made by 8 men and 4 boys in 20 days ?
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Explanation:
[m1×t1×d1\ w1=m2×t2×d2\ w2]
10M×20days\ 260Mats=20B×20days\ 260Mats
10M = 20B
1 M = 2B
∴M\B=2\1
∴1Mwork=2 units/day
1Bwork=1 units/day
Mats made by 8M+4B in 20 days
10M×20days\ 260 Mats=(8M+4B)×20 days\ xmats
10×2×20days\ 260m=20×20days\ xm
after solving,
x = 260 mats