Linear Equation...

Baichungs father is $$26$$ years younger than Baichungs grandfather and $$29$$ years older than Baichung. The sum of the ages of all the three is $$135$$ years. What is the age of each one of them?

The present ages of a father and his son are in the ratio $$7 : 3$$ and the ratio of their ages will be $$2 : 1$$ after $$10 $$ years. Then, the present age of father (in years) is

It costs Rs. $$10$$/kilometer to fly and Rs. $$2$$/kilometer to drive. If one travels $$200$$ km covering $$x$$ km of the distance by flying and the rest by driving, then the cost of the trip is

If you subtract $$\cfrac{1}{2}$$ from a number and multiply the result by $$\cfrac{1}{2}$$, you get $$\cfrac{1}{8}$$. The number obtained is 

Lakshmi is a cashier in a bank. She has currency notes of denominations Rs. $$100$$, Rs. $$50$$ and Rs. $$10$$, respectively. The ratio of the number of these notes is $$2:3:5$$. The total cash with Lakshmi is Rs. $$4,00,000$$. How many notes of each denomination does she have?

One of the two digits of a two digit number is three times the other digit. If you interchange the digits of this two-digit number and add the resulting number to the original number, you get $$88$$. What is the original number?

The sum of three non-zero prime numbers is $$100$$. One of them exceeds the other by $$36$$. Then the largest number is

The ages of Rahul and Haroon are in the ratio $$5:7$$. Four years later the sum of their ages will be $$56$$ years. What is the present age of rahul?

Three consecutive integers are such that when they are taken in increasing order and multiplied by $$2, 3$$ and $$4$$ respectively, they add up to $$74$$. Find these numbers.

The sum of three consecutive odd numbers is $$57$$. Find the numbers.