Question 22

Which two signs should be interchanged in the following equation to make it correct?
$$35 + 7 - 5 \times 2 \div 25 = 20$$

Solution

$$35 + 7 - 5 \times 2 \div 25 = 20$$

After interchanging $$+ and \div$$

$$35 \div 7 - 5 \times 2 +25 = 20$$

$$5-10+25=20$$

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