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

    Question

    Which two numbers should be interchanged to make the

    given equation correct? 9 + 7 × 5 − 18 ÷ 2 = 3 × 4 − 10 + 45 ÷ 5
    A 18 and 45 Correct Answer Incorrect Answer
    B 7 and 4 Correct Answer Incorrect Answer
    C 2 and 5 Correct Answer Incorrect Answer
    D 9 and 3 Correct Answer Incorrect Answer

    Solution

    9 + 7 × 5 − 18 ÷ 2 = 3 × 4 − 10 + 45 ÷ 5 By the option B, To interchange the 7 and 4, 9 + 4 × 5 − 18 ÷ 2 = 3 × 7 − 10 + 45 ÷ 5 9 + 4 × 5 − 9 = 3 × 7 − 10 + 9 9 + 20 − 9 = 21 − 10 + 9 20 = 20

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