Question

`If a milkman mixes 8 lit of water inhis X lit of pure milk. And give 10%Discount on the cost of milk andmanage to earn 30% profit then thevalue of X is_`​

Answer 1

Answer:

Let M & W denote the quantities (in L) of milk & water that are mixed together.

As per given data we have,

Cost-price of milk is Rs. 8/L.

Sell-price of the mixture is Rs. 9/L.

Thereby milkman makes 40% profit.

Hence we get the following relation,

9*(M + W) = (1 + 40/100)*8*M= (56/5)*M

or 45*(M + W) = 56*M or 45*W = 11*M

or W/M = 11/45 or W : M = 11 : 45

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Step-by-step explanation: