Question
(627.98 ÷ 3.98 + 11.01 X 12.98 - ?) ÷ √623 = (178.98
+ 37.08) ÷ 23.98 What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)Solution
ATQ, (627.98 ÷ 3.98 + 11.01 X 12.98 - ?) ÷ √623 = (178.98 + 37.08) ÷ 23.98 (628 ÷ 4 + 11 X 13 - ?) ÷ √625 ~ (179 + 37) ÷ 24 (157 + 143 - ?) ÷ 25 ~ 216 ÷ 24 (300 - ?) ÷ 25 ~ 216 ÷ 24 (300 - ?) ÷ 25 ~ 9 300 - ? ~ 225 ? ~ 75
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