Azolla a fern is used for nitogrn fixation in symbiosis with anabaena a blue green algae in rice crop.
A man invested a certain amount of sum at 12.5% per annum simple interest and earned an interest of Rs.2800 after 4 years. If the same amount is investe...
David takes a loan of Rs. 20000 from his friend Alex, which he is to return at 10% p.a. simple interest after 5 years. Alex takes...
Manoj deposited a sum of money in a scheme that offers 10% annual compound interest for a period of three years. If the total interest he earned at the...
A sum of ₹8,500 amounts to ₹11,900 in 5 years at simple interest per annum. If the rate of interest is increased by 3%, then the increased amount fo...
A sum of ₹15,625 is invested for 2 years at an annual interest rate of 8%. For the first 1.5 years, the interest is compounded semi-annually, and for ...
The difference between the simple interest and the compound interest compounded annually at the same rate on a sum of money at the end of two years is R...
When two equal amounts are deposited for 7 years and 5 years at the rate of 6% and 8% per annum respectively, the difference of their simple interest is...
A certain sum of money becomes 5000 in 6 years and Rs. 6240 in 10 years at any certain rate of simple interest. Find the principal amount.
A sum of money amounts to ₹13,200 after 3 years at a certain simple interest rate. If the principal was ₹10,000, what was the rate of interest per a...
A borrows Rs 7000 from B at 10% p.a compound interest compounded annually. At the end of every year he pays Rs 2200 and at the end of 3rd years he pays ...
