Question

Cloth Makers Inc. has p spindles, each of which can produce q metres of cloth on an average in r minutes. If the spindles are made to run with no interruption, then how many hours will it take for 20,000 meters of cloth to be produced?

• A. 20000 (pq)/r
• B. 20000 (q)/p
• C. 20000 (pr)/(pq)
• D. 20000 r/60 (pq)

Answer 1

Answer: (D)

20000 r/60 (pq)

Answer 2

Time taken to make $(pq)$ metres of cloth = $r$ min
Time taken to make 20,000 m of cloth = $\frac{r}{pq} \times 20,00,000$ mintues
Therefore, Required time (in hour) =$20,00,00 \times 60(\frac{r}{pq})$
The correct answer is (D) : 20000 r/60 (pq)