Question 94

In the following question, which of the two signs are interchanged to make the equation correct?
$$3 \div 5 \times 8 + 2 - 10 = 13$$

Solution

$$3 \div 5 \times 8 + 2 - 10 = 13$$

$$\div and +$$

$$3 + 5 \times 8\div 2 - 10 = 13$$

apply bodmass rule

$$3 + 5 \times 4 - 10 = 13$$

$$3 + 20 - 10 = 13$$

13= 13

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