A and B undertaken to do a piece of work for ₹1200. A alone can do it in 8 days, while B
can do it in 6 days. With the help of C, they complete it in 2 days. Find C’s share.
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According to the question.
1/A + 1/B + 1/C= 1/3 ⇒ 1/8 + 1/6 + 1/C = 1/3
⇒ 1/C = 1/3 - (1/8 + 1/6) = 1/24
∴ Ratio in share of A, B and C
= (1/8) : (1/6) : (1/24)
= (3/24) : (4/24) : (1/24)
= 3 : 4 : 1
∴ C's share = 1 / 3 + 4 + 1 x 1200 = ₹ 150
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