Pure ghee costs ₹100 per kg. After adulterating it with vegetable oil costing ₹50 per kg, a shopkeeper sells the mixture at the rate of ₹96 per kg, thereby making a profit of 20%. In what ratio does he mix the two?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e 3 : 2.
If the selling price is ₹96 and profit is 20%,
Cost price = 96 ÷ 1.2 = ₹80/kg
Ghee at ₹100
Oil at ₹50
Mixture at ₹80
Now
Difference between ghee and mixture = 100 - 80 = 20
Difference between oil and mixture = 80 - 50 = 30
Ratio of ghee to oil = 30 : 20 = 3 : 2