Question
The given equation has been solved on the basis of a
certain rule. Find the correct answer for the unsolved equation on that basis: If a ÷ b = (a + b) ÷ (a – b) then (16 ÷ 4) × (42 ÷ 7)Solution
(16 ÷ 4) × (42 ÷ 7) = [(16+4)÷(16-4)] × [(42+7)÷(42-7)] = [20÷12] × [49÷35] = 20/12 × 49/35 = 7/3
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