Question

In a bag, there are 2-rupee and 5-rupee coins. The number of 5-rupee coins is twice that of 2-rupee coins and their worth is Rs. 144.Find the number of 5-rupee and 2-rupee coins.

Answer 1

Answer:

12 coins of 2 rupee and 24 coins of 5 rupee

Step-by-step ex

2*12 = 24

5*24(double of 2 rupee coin) = 120

24+120= 144 rupees (in total)

Answer 2

Answer:

The no. of ₹2 coins is 12 and ₹5 coins is 24

Step-by-step explanation:

Let no. of  ₹2 coins be x

⇒No. of ₹5 coins = 2x

Given: The amount adds up to ₹144

⇒ 2 × x + 2x × 5 = 144

⇒ 2x + 10x = 144

⇒ 12x = 144

⇒ x = 144/12

⇒ x = 12

⇒ 2x = 2 × 12 = 24

∴The no. of ₹2 coins is 12 and ₹5 coins is 24