part of a pole lies in mud, part lies in water and the remaining 5 meters lies above the water. Let’s find the length of the pole and write it.

Divide 830 into two parts in such a way, that 30% if one part will be 4 more than 40% of the other.

Divide 56 into parts, so that thrice of the first part becomes 48 more than one third of the second part.

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.

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.