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    Question

    In a test of class X one third of listed students

    appeared in test got grade B. one fourth got B+, one sixth got grade B and one eighth failed i.e. grade C. Everyone else got grade A. Choose the correct answer from the options given below:
    A (A)-(I), (B)-(IV), (C)-(II), (D)-(III) Correct Answer Incorrect Answer
    B (A)-(IV), (B)-(II), (С)-(III), (D)-(I) Correct Answer Incorrect Answer
    C (A)-(III), (Β)-(I), (C)-(IV), (D)-(II) Correct Answer Incorrect Answer
    D (А)-(II), (Β)-(III), (C)-(I), (D)-(IV) Correct Answer Incorrect Answer

    Solution

    ATQ, Let total grade B, B+, B and C is = (L.C.M = ((1/3),(1/4),(1/6) and (1/8) = 24) Grade B = (1/3) × 24 = 8 Grade B+ = (1/4) × 24 = 6 Grade B = (1/6) × 24 = 4 Grade C = (1/8) × 24 = 3 So grade A will be = 24 - (8+6+4+3) = 24 – 21 = 3

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