Question
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.) (?² + √15.9) ÷ 4.98 = 12.89 X 3.97Solution
ATQ,
(?² + √15.9) ÷ 4.98 = 12.89 X 3.97
(?² + √16) ÷ 5 ~ 13 X 4
(?² + 4) ÷ 5 ~ 52
? ² + 4 ~ 260
? ² ~ 256
? ~ ±16
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