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    Question

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    A 19 Correct Answer Incorrect Answer
    B 20.5 Correct Answer Incorrect Answer
    C 19.5 Correct Answer Incorrect Answer
    D 20 Correct Answer Incorrect Answer

    Solution

    ATQ, Given:

    LHS: 21.5 Γ· 5 = 4.3 21 Γ· 6 = 3.5 13.5 Γ· 15 = 0.9 β†’ LHS = 4.3 + 3.5 βˆ’ 0.9 = 6.9 RHS:

    β†’ 6.9 βˆ’ 17/30 = x/3 β†’ 6.9 βˆ’ 0.5667 = 6.3333 β†’ x = 6.3333 Γ— 3 = 19

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