Direction: Each of the following questions is followed by information in three statements. You are to find out which statement(s) is /are sufficient to answer the question and mark your answer accordingly.
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What is the average age of the six member A, B, C, D, E and F in the family ?
I. Average age of D and E is 14 yr.
II. Average age A, B, C and F is 50 yr.
III. Average age of A, B, D and E is 40 yr.
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- I and II
- I and III
- II and III
- I, II and III
Correct Option: A
From Statement I,
D + E = 14 x 2 = 28
From Statement II,
A + B + C + D + E + F = 4 x 50 = 200
(A + B + C + D + E + F)/6 = 28 + 200/6
= 228/6 = 38
∴ Statement I and II are sufficient to answer the question.
