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  1. Which of the following interchange of number would make the given equation correct ?
    8 x 20 ÷ 3 + 9 - 5 = 38
    1. 3, 9
    2. 3, 8
    3. 8, 9
    4. 3, 5
Correct Option: D

∵ 8 x 20 ÷ 3 + 9 - 5 = 38 ⇒ 8 x 20 ÷ 5 + 9 - 3 = 38
⇒ 8 x 4 = 9 - 3 = 38 ⇒ 32 + 9 - 3 = 38



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