sahiljan762 sahiljan762

20-02-2020
Mathematics

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A hospital gift shop sells magazines, books and cards in the ratio 4:3:9. Suppose the shop sold 45 books, how many magazines and how many cards did they sell.

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musiclover10045 musiclover10045

20-02-2020

Books is the 3 in the ratio, so for every 3 books sold there are 4 magazines and 9 cards.

Divide the number of books by 3:

45/3 = 15

Multiply the ratio of magazines and cards by 15:

Magazines = 15 x 4 = 60

Cards = 15 x 9 = 135

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