A website Maths Puzzle Logical Reasoning

Totally how many squares are available in the CHESS BOARD?

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A website Other Question

a shopkeeper purchased a table marked at 200 at successive discount at 10% and 15% respectively . he spent Rs 7 on transportation and sold it for 200 . find gain percent ? Jeff is two years younger than Carrie. 12 years ago, Carrie was twice as old as Jeff. How old is Jeff now?