Question
287.97 ÷ √323.99 = ? + 4.05-2 ×
64.05 What approximate value should come in place of (?) in the following questions?Solution
287.97 ÷ √323.99 = ? + 4.05-2 × 64.05 => 288 ÷ √324 = ? + 4-2 × 64 => 288 ÷ 18 = ? + 4-2 × 64 => 16 = ? + (1/16) × 64 => ? = 16 – 4 => ? = 12
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