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.) 21.42 × 12.98 + 9.63 × 7.89 – 145.39 = ?Solution
ATQ,
21.42 × 12.98 + 9.63 × 7.89 – 145.39 = ?
≈ 21 × 13 + 10 × 8 – 145
= 273 + 80 – 145
= 353 – 145
= 208
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