New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    What is the age of C, in a group of A, B, C, D and E

    whose average age is 50 years? Statement I: Average of the age of D and E is 47 years? Statement II: Average of the age of A and B is 50 years?
    A Only II Correct Answer Incorrect Answer
    B Only I Correct Answer Incorrect Answer
    C Both I and II Correct Answer Incorrect Answer
    D Neither I nor II Correct Answer Incorrect Answer
    E Either I or II Correct Answer Incorrect Answer

    Solution

    From statement I and II: A + B + C + D + E = 5 × 50 = 250 years ……………….(i) A + B = 100 years …………………(ii) D + E = 94 years ………………..(iii) From (i), (ii) and (iii), we get C = 56

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