Question
7.992 + (4.01 × 3.98) + ? = 224.03
What approximate value should come in place of question mark (?) in the following question? (You are not expected to calculate the exact value)Solution
7.992 + (4.01 × 3.98) + ? = 224.03 => 82 + (4 × 4) + ? = 224 => 64 + 16 + ? = 224 => ? = 224 – 80 => ? = 144
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