From a factory in Bakultala, last year there was an income of Rs.7521200.This year there is an additional earning of Rs.3250325.Let us find his total earnings in two Years.

The income of a person is Rs. 3,00,000, in the first year and he receives an increase of Rs.10,000 to his income per year for the next 19 years. Find the total amount, he received in 20 years.

Two posts were offered to a man. In the first one the starting salary was Rs. 120 per month and the annual increment was Rs. 8, In the second post the salary commenced at Rs. 85 per month but the annual increment was Rs. 12. The man decided to accept that post which would give him more total earnings in the first twenty years of his service. Which post was acceptable to him ? Justify your answer.

At the beginning of a year, a person took a loan of Rs800 and after 7 months, he again took another loan of Rs240 at a rate of twice than the first . If at the end of the year , he have to pay a total interest of Rs50 , then find the rate of interest in percent per annum of the first loan.

Rohit invested Rs. 10000 for 3 years at the rate of compound interest of 10%. Find the amount obtained by him after 3 years.

If the total interest of some money for 2 years at the rate of interest 5% per annum is Rs 65, then find the money.

A and B invest Rs (a+b)^2 and Rs (a^2+b^2) in a business. After 1 year there is a profit of Rs 2ab. Find A's profit.

Find the compound interest of Rs. 12000 in 3 years at the rate of 10% compound interest per annum.

Gautambabu has taken a loan of Rs. 2000 for 2 years at the rate of compound interest fo 6% per annum. Find the compound interest he has to pay after 2 years.

For cleaning and purification of a pond in Bakultala, local panchayat appointed few men. The men worked as many days there were number of men appointed and got a total amount of Rs. 12375. If each one got Rs. 55 day, then let's find how many men worked.

Total interest of Rs 100 at y% per annum in y^2 years is