Hamed is 7 years older than his brother Shaquib, who is twice as old their younger sister Lopa. if Lopa is 15 years younger than Hamed, then how old is Shaquib?

A 8 years
B 12 years
C 16 years
D 20 years

Correct Answer: 16 years

Hints: ধরি, লোপার বয়স x বছর সাকিব এর বয়স 2x বছর হামিদের বয়স (2x + 7) বছর 2x + 7 - x = 15 x = 15 - 7 x = 8 সাকিব এর বয়স = ( 2×8) = 16 বছর
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