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।