A bag contains 25p, 50p and 1 rupee coins whose values are in ratio 3 : 2 : 1 in the total amount. If the total values of coins are Rs. 150. Find the total number of coins.

A bag contains 25p, 50p and 1 rupee coins whose values are in ratio 3 : 2 : 1 in the total amount. If the total values of coins are Rs. 150. Find the total number of coins. Correct Answer 425

Given:

In the box 25p, 50p and 1 rupee coins are in the ratio = 3 : 2 : 1

Total values of coin = Rs. 150

Calculation:

Total amount in 25 paise = (3/6) × 150 = 75

⇒ Number of 25p coins = 75 × 4 = 300

Total amount in 50 paise = (2/6) × 150 = 50

⇒ Number of 50p coins = 50 × 2 = 100

Total amount in 1 rupee = (1/6) × 150 = 25

⇒ Number of 1 rupee coins = 25 × 1 = 25

Now, Total number of coins = 300 + 100 + 25

⇒ 425

∴ The number of coins in the bag is 425.