Wednesday, 20 June 2012

DAY 399

360 doctors and nurses work in a hospital. If the ratio of doctors to nurses is 7 to 11, how many nurses are there?

Answer:

220 .......... 7 + 11 = 18. 360/18 = 20. There are 20 groups of doctors and nurses. If the ratio is 7 to 11, there are 7 x 20 = 140 doctors, and 11 x 20 = 220 nurses.

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