Q9 of 52 Page 326

Check whether 22 + 23 + 24 is divisible by 2 or 4 or by both 2 and 4?

Given, 22 + 23 + 24

Need to calculate it is divisible by 2 or 4 or both


⇒ 22 + 23 + 24 can be written as


⇒ 4 + 8 + 32 = 44 is divisible by 2 or 4 or by both since, unit place of a number is divisible by 2 or 4 or both.


Hence, the number is divisible by both 2 and 4


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