A is as much younger than B as he is older than C. If the sum of the ages of B and C is 50 years, what is definitely the difference between ages of A and B?
A) 1 year B)2 years C)25 years D)Data inadequate E)None of these

• A is as much younger than B and he is older than C. If the sum of the ages of B and C is 50 years, what is definitely the difference between B and A's age? Answer: By problem, age of A= avg of ages of B & C= 50/2=25.
• 4 years agoHelpfull: Yes(0) No(3)
• Given that:
  1. The difference of age b/w B and A = The difference of age b/w A and C.
  2. Sum of age of B and C is 50 i.e. (B + C) = 50.
  
  Question: A - B = ?.
  Explanation:
  A - B = B - C
  (B+ C) = 2A
  Now given that, (B +C) = 50
  So, 50 = 2A and therefore A = 25.
  Question is (A - B) = ?
  Here we know the value(age) of A (25), but we don't know the age of B.
  Therefore, (A-B) cannot be determined.
• 4 years agoHelpfull: Yes(0) No(0)
• ans- D
  1)difference between the ages of B and A=difference between ages of A and C
  2)sum of the ages of B and C =50
  find difference between ages of A and B
  so, 1) B-A=A-C
  =>B+C=2A
  2)so we know B+C=50
  so 2A=50
  A=25
  so A-B=?
  here A is 25 but we don't know the age of B
  so we can not find the (A-B)
  so data ineadequate
• 3 years agoHelpfull: Yes(0) No(0)