Instructions

What approximate value will come in place of the question mark (?) in the following questions ? (You are not expected to calculate the exact value).

Question 39

39.97% of 649.8 ÷ 13.05 = 45.12 - ?

Solution

Let the missing term be y

39.97% of 649.8 ÷ 13.05 = 45.12 - y

In such cases when we follow BODMAS rule and we first simplify "of " part and then other parts

$$\frac{39.97}{100}\times 649.8$$ ÷13.05 = 45.12 - y

259.72÷13.05 = 45.12 - y

19.902 = 45.12 - y

y = 25.2 = ~25

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