9 typist can type 31 page in 1 hour.How many typist are required to type 217 pages in 1 hour.​

1 thought on “9 typist can type 31 page in 1 hour.How many typist are required to type 217 pages in 1 hour.​”

1. Answer:

   63 typists

   Step-by-step explanation:

   In 1 hour, 31 pages can be typed by 9 typists.

   If no. of page decreases, the no. of typists also decreases. So, we will use direct proportionality, here.

   In 1 hour, 1 page can be typed by 9/31 typist.

   In 1 hour, 217 pages can be typed by 9/31 × 217 typists = 63 typists.

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