Kirsty manages a restaurant. Each day she buys watermelons and mangoes in the ratio of 3∶2. How many watermelons did she buy if, on one day, the total number of watermelons and mangoes was 200?
watermelon to mangoes= 3: 2
3+2=5
number of watermelon =( 3/5 ) x 200 = 120
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