Question

Reshma has a total of rupees 1260 in her Piggy box she has 1 rupees coin 2 Rupees coin and 5 rupees coins in the ratio 4:7:9 find the numberof each coin​

Answer 1

Answer:

Step-by-step explanation:

Let the ratio of denomination be 4x,7x,9x.

According to given condition

1*4x + 2*7x + 5*9x = 1260

4x + 14x +45x = 1260

63x = 1260

x= 20.

₹1 coin = 4*20 =40

₹2 coin = 7*20 = 140

₹5 coin = 9*20 = 180

Answer 2

Answer:

Let the Rs. 1 coin, Rs. 2 coin & Rs. 5 coin be 4n, 7n and 9n respectively.

☯ According to the Question :

⇢ (Rs. 1 + Rs. 2 + Rs. 5) Coin = Rs. 1260

⇢ (1 × 4n) + (2 × 7n) + (5 × 9n) = 1260

⇢ 4n + 14n + 45n = 1260

⇢ 63n = 1260

• Dividing both term by 63

⇢ n = 20

━━━━━━━━━━━━━━

☢ Number of Different Denomination :

⇴ Rs. 1 = 4n = 4(20) = 80

⇴ Rs. 2 = 7n = 7(20) = 140

⇴ Rs. 5 = 9n = 9(20) = 180

∴ Number of Rs. 1, Rs. 2 and Rs. 5 coin will be 80, 140 and 180 respectively.