A box contains Rs 5, Rs 2 and Rs 1 coins in the ratio 7:3:2. The total amount in the box is Rs 1075. Find the number of Rs 2 coins.
Show answer & explanation
Correct answer: B
Explanation
Given:
Ratio of 5 Rupees : 2 Rupees : 1 Rupee coins = 7 : 3 : 2
Total amount = ₹1075
By the formula:
Total amount = (Number of coins × their value)
Let the number of coins be
5 Rupees = 7 x
2 Rupees = 3 x
1 Rupee = 2 x
Total amount = 5(7 x) + 2(3 x) + 1(2 x) = 43 x
43 x = 1075
x = 25
Number of 2 Rupee coins = 3 x = 3 × 25 = 75