Question
The average cost price of two products, Lakme and Fruit
Joy, is Rs. 400. These products are sold at profits of 10% and 20%, respectively. If the combined selling price of Lakme and Fruit Joy amounts to Rs. 918, what is the cost price of Fruit Joy?Solution
Here, we can see that 10% profit is common in both So, 10% of 800 = 80 S.P = 800 + 80 = 880[without the 10% profit of fruit joy ]  Rest profit = 918 - 880 = 38 According to the figure and concept 10% of the Cost Price of Fruit joy  = 38 C.P of Fruit joy /10 = 38 The cost price of Fruit Joy is 380
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