Question
82.3 × 644.7 × 723.4
× 815.85 = 72? What should come in place of question mark (?) in the following equatiion ?Solution
82.3 × 644.7 × 723.4 × 815.85 = 72? 82.3 × 89.4 × (72)3.4 × 911.7 = 72? 811.7 × 911.7 × (72)3.4 = 72? 7211.7 × 723.4 = 72? 7215.1 = 72? ? = 15.1
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