A bag contains 1 rupee, 50-paise and 25-paise coins in the ratio 5 : 6 : 7. If the total amount is ₹390, find the number of 25-paise coins
Answer & explanation
Correct answer: option 1
Total amount = 390
1 Rs. 50 P 25 P
Number → 5 6 7
In Rupees → 5x \(\frac{6}{2}\) = 3x \(\frac{7}{4}\) = 1.75x
So, (5 + 3 + 1.75)x = 390 (given)
9.75x = 390
x = 40
No. of 25 P coins = 7 × 40 = 280