A is 3 years older than B and 3 years younger than C. B and D are twins. How older is C than D?

A 12 years

B 6 years

C 3 years

D Cannot be Determined

Solution

Correct Answer: Option B

A এর বয়স = B  +  3 বছর 
A এর বয়স = C - 3 বছর 

যেহেতু 
B এবং D যমজ
B = D

B  +  3 = C - 3
D  +  3 = C - 3
D = C - 6
C = D + 6

C, D এর চেয়ে 6 বছরের বড়।

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