Question
12.99 × 9.99 + ? × 7 + 240.001 = 21.012
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, 12.99 × 9.99 + ? × 7 + 240.001 = 21.012 13 × 10 + ? × 7 + 240 ~ 212 130 + ? × 7 + 240 ~ 441 ? × 7 ~ 441 - 370 ? × 7 ~ 71 ? ~ 10
More Approximation Questions
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