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.) √625 × 13.1 + 19.8² = ?Solution
ATQ,
√625 = 25
25 × 13.1 ≈ 25 × 13 = 325
19.8² ≈ 20² = 400
⇒ 325 + 400 = 725
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