Question
If 7 * 5 @ 10 # 20 = 370 and 4 * 3 @ 5 # 30 = 90,
then 2 * 3 @ 4 # 5 = ?Solution
The correct answer is C
The ages of A, B and C together are 42 years. B is twice as old as A and C is 2 years older than A. What is the difference between ages of B and C?
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