A bag contains a total of 180 coins in the denominations of Rs. 5 and Rs. 1. Find the number of Rs. 5 coins in the bag, if the total value of the coins is Rs. 500.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 80.
Let the number of Rs. 5 coins = x
5x + 1(180 - x) = 500
⇒ 5x + 180 - x = 500
⇒ 4x = 320
⇒ x = 80