A bag contains one rupee, 50 paise and 25 paise coins in the ratio 5 : 6 : 8. If the total amount is ₹ 420, find the total number of coins.
A 798
B 789
C 978
D 987
Time is too short
Ans 2:
Class : Class 7
Let the number of coins of ₹ 1 = 5xNumber of coins of 50 paise = 6xAnd number of coins of 25 paise = 8xAccording to question,5x × 100 6x × 50 8x × 25 = 420 × 100⇒ 500x 300x 200x = 4200⇒ 1000x = 42000 ⇒ x = 42∴ Number of coins of ₹ 1 = 5 × 42 = 210Number of coins of 50 paise = 6 × 42 = 252Number of coins of 25 paise = 8 × 42 = 336∴ Total number of coins= 210 252 336 = 798