Question

A man bought petrol at the cost of Rs. 70/liter and kerosene at Rs.30/liter. He mixed petrol and kerosene in some ratio and sold the mixture at Rs. 60/liter. If he earned a profit of 11 1/9%, then find the ratio of petrol and kerosene oil in the mixture. (a) 4 : 1 (b) 5:3 (d) 1:1 (e) 7:3 (C) 3:2
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Answer 1

Answer:

Step-by-step explanation:

Let the required ratio of diesel to petrol be 1:x

According to question , (70×1+40×x)  

4

5

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= 75× (x+1)

Solving we get x=  

2

1

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So Ratio of diesel to petrol = 2:1