A bag contains coins of 1 Rupee, 50-paise and 25-paise in the ratio 5 : 6 : 8. If the total amount in the bag is ₹210, find the number of 1 Rupee coins.
What is the value ratio of ₹5, ₹2, and ₹1 coins in a bag if the total number of coins is 144 and the value ratio is 10:6:7? Find the number of ₹2 coins.