Question 28

Which two signs should be interchanged to make the following equation correct?
$$7 \times 2 + 5 - 16 \div 4 = 13$$

Solution

If you interchange $$\times\ \ and\ \ +$$, the equation will become,

$$7+2\times\ 5-16\div4$$

$$=7+2\times\ 5-4$$

$$=7+10-4$$

$$=17-4$$

$$=13.$$

Option A is correct.

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