Atul purchased Bread costing Rs. 20 and gave a 100 rupee note to the shopkeeper. The shopkeeper gave the balance money in coins of denominations Rs. 2, Rs. 5, and Rs. 10. If these coins are in the ratio 5 : 4 : 1, then how many Rs. 5 coins did the shopkeeper give?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 8.
The shopkeeper will give back = 100 - 20
⇒ Rs.80
Let the number of Rs.2, Rs.5, and Rs.10 coins be 5x, 4x, and x.
⇒ 5x(2) + 4x(5) + x(10) = 80
⇒ 10x + 20x + 10x = 80
⇒ x = 2
Number of Rs.5 coins = 4(2)
⇒ 8