1.

There are some books inside a bag. 40% of total books are Red and rest 60 are Green. The average price of green books is Rs.120 and the average price of Red books is Rs.100. Find the average price of books inside a bag.1. Rs.1122. Rs.1203. Rs.1154. Rs.985. Rs.105

Answer» Correct Answer - Option 1 : Rs.112

Given:

Let total number of books inside a bag be N.

Total number of Red books = 40/100 × N = 2N/5

Total number of Green books = N - 2N/5 = 3N/5

⇒ 3N/5 = 60

⇒ N = 100

Total number of Red books = 2/5 × 100 = 40

Total price of Red books = 40 × 100 = Rs.4000

Total price of Green books = 60 × 120 = Rs.7200

Total price of 100 books = 4000 + 7200 = Rs.11200

∴ Average price of books inside a bag = 11200/100 = Rs.112



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