Question
5 kg of ₹18 per kg wheat is mixed with 2 kg of another type of wheat to get a mixture costing ₹20 per kg. Find the price (per kg) of the costlier wheat.
Solution
ATQ, Let the price of 2 kg wheat be Rs. y/kg then, (5 × 18) + (2 × y) = 7 × 20 ⇒ 90 + 2y = 140 ⇒ 2y = 50 ⇒ y = 25
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