Question

Old MacDonald had a farm where he kept calves and chicks. Everyday he counted them and they always totalled 12 heads and 34 legs. How many calves and chicks did he have?

Answer 1

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First,

Chicks have two legs and

Calves have four legs.

Can be found out through trial and error method.

If there were 7 chicks, then 14 chick's legs

And 5 calves and 20 calves' legs.

That would add up to 12 heads and 34 legs.

∴ He had 7 chicks and 5 calves.

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