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peter is 7 years old . his sister’s age is 8 years more than trice his age . how old is her sister?

By Lyla

peter is 7 years old . his sister’s age is 8 years more than trice his age . how old is her sister?

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Lyla

A boot travels 16 km upstream and 24 km downstream in 6 hours. The same boat travels 36 km upstream and 48 km downstream in 13 hou

11. Isoprophylbenzene on air oxidation in the presence of dilute acid gives a)C6H5COOH b) C6H5COCH3 “,” c) C6H5COC6H5 “,” d) C6H5

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