My uncle changed a 1000 rupee cheque from a bank in the form of 5 rupee and 10 rupee notes. If he received 137 notes in total then find the number of 5 rupee notes that he got.

At present, my father’s age in 7 times of my age. After 10 years my father’s age is 3 times of my age. Let’s calculate and write the present age of my father and me.

Salem uncle of our village used of this savings to buy a house after his retirement from a government job. One day after falling in trouble, he sold his house and got 5% more than his cost price. If he would have taken Rs. 3450 rupees more then he would get 8% more than his cost price. Let’s find the amount of money Salem uncle used to buy his house, and his entire savings.

There was a food provision for twenty days in a refugee camp of the village Goplapur. After 7 days, 100 more refugees joined the refugee camp and they consumed the food grains within 11 days. Let’s write the number of refugees that were present initially.