Carly had 42 lollipops to share with her friends. Half of the lollipops were cherry, and the rest were equal amounts of watermelon, sour apple, and grape. How many lollipops were grape?
Of her 42 lollipops, half were cherry, so 42 lollipops / 2 = <<42/2=21>>21 were not cherry.
Of the 21 that were not cherry, 1/3 of them were grape, so 21 lollipops / 3 = <<21/3=7>>7 grape lollipops.
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