Question

Q. Each of the Boys were given a prize (Correct the sentence)

Answer 1

#Each of the boys was given a price.
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☆ Given sentence → Each of the boys were given a price.

☆ Correct sentence → Each of the boys was given a price.
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☆ "Each of the boys" → Singular.

☆ That's why here, I have used "was" in the place of "were".

Answer 2

Hello!

the correct sentence should be:
each of the boys was given a prize.
because each of the boys Is singular so according to subject verb agreement the verb should also be singular.

hope it helps... :)