Question 106Solve the followingKusum buys some chocolat

Question 106Solve the followingKusum buys some chocolat
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Question 106

Solve the following

Kusum buys some chocolates at the rate of Rs. 10 per chocolate. She also buys an equal number of candies at the rate of Rs. 5 per candy. She makes a 20% profit on chocolates and 8% profit on candies. At the end of the day, all chocolates and candies are sold out and her profit is Rs. 240. Find the number of chocolates purchased.

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Right Answer is:

SOLUTION

Let Kusum purchased x chocolates.
Then, total cost of chocolates=Rs. 10x
Similarly, she purchased x candies.
Then, total cost of candies=Rs.5x
According to the question,
Profit on chocolates =20% of 10x=20100×10x=Rs.2x
and profit on candies=8% of 5x=8100×5x=Rs.0.4x
Total profit =2x+0.4x=Rs.2.4x
But it is given that total profit is Rs. 240.
Again, according to the question, 
2.4x=240x=2402.4=100
Hence, he purchased 100 chocolates.