(adsbygoogle = window.adsbygoogle || []).push({}); such an easy math problem but i can't do it!!! help!!!

a group of 20 students is waiting for the school bus. each child is wearing either a hat, a scarf, or both. if 10 wear hats and 16 wear scarves, how many are wearing hats but no scarves?

it seems so easy buh it's quite annoying.

help. thnks.

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# Such an easy math problem but i can't do it help

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