Question
(519.98 + ?) ÷ 13.01 = √440 +
20.0 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, (519.98 + ?) ÷ 13.01 = √440 + 20.01 (520 + ?) ÷ 13 ~ √441 + 20 40 + ? ÷ 13 ~ 21 + 20 ? ÷ 13 ~ 41 – 40 ? ~ 13
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