Question
29.98% of 249.897 = ?² –
(4.98)² 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
29.98% of 249.897 = ?² – (4.98) ²
? ² – 25 ~ 30% × 250
? ²~ 75 + 25
? ²~ 100
? ~ √100 ~ 10
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