Question
Tea worth Rs. 80/kg and Rs. 100/kg are mixed with a third
variety in the ratio 5:3:2 respectively. If the final mixture is worth Rs. 92/kg, then the price of the third variety of tea is:Solution
Let the quantity of three varieties of tea in the new mixture be β5xβ kg, β3xβ kg, and β2xβ kg respectively
Let the price of the third variety of tea be Rs. βyβ/kg
ATQ:
(80 Γ 5x) + (100 Γ 3x) + (y Γ 2x) = 92 Γ (5x + 3x + 2x)
Or, 400x + 300x + 2xy = 92 Γ 10x
Or, 700x + 2xy = 920x
Or, 2xy = 220x
Or, y = 110
So, the price of the third variety of tea = Rs. 110/kg
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