Question 123

Two spinning machines A and B can together produce 3,00,000 metres of cloth in 10 hours. If machine B alone can produce the same amount of cloth in 15 hours, then how much cloth can machine A produce alone in 10 hours?

Solution

Effciency of machine A alone = $$\frac{1}{10}-\frac{1}{15}$$

= $$\frac{3-2}{30}=\frac{1}{30}$$

Thus, machine A alone produce 3,00,000 metres of cloth in 30 hours

$$\therefore$$ In 10 hours, machine A alone can produce = $$\frac{300000}{30}\times10=1,00,000$$ metres

=> Ans - (B)

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