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By interchanging the given two signs which of the following equation will be not correct? + and – A. 18 ÷ 3 + 8 × 5 – 4 = 30 B. 4 × 6 + 7 – 3 ÷ 1 = 20 C. 18 + 8 × 6 ÷ 3 – 11 = 13 D. 6 × 9 + 7 – 8 ÷ 2 = 51 Sol: Starts from option A 18 ÷ 3 – 8 × 5 + 4 = 6 – 40 + 4 = – 30 ...
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