Why do metals conduct electricity?
Metals conduct electricity due to the presence of free electrons that can move easily through the metal lattice, carrying electrical charge.
A&B invested their sum in the ratio of 22: 25. Respectively. In two different schemes. Offering simple interest of 15% per annum and compound interest o...
A man purchases some number of apples at the rate of 36 apple for Rs. 1. How many for a rupee did he sell to gain 12.5%.
A sum doubles in eight years at simple interest. In how many years will the sum become five times the original sum?
The compound interest on a certain amount for 2 years at 4% per annum is ₹ 1,428 if interest is compounded annually. Find the simple interest on that ...
The interest earned on investing Rs. 5000 for 2 years at the rate of 20% p.a., compounded annually, is used to purchase an article. If the article is la...
Viraj invested Rs. 3500 at 20% p.a. simple interest for 3 years. After 3 years, he invested the amount received by him at the 20% p.a. compound interest...
A took loan from a bank at the rate of 17%p.a. simple interest. After 5 years he had to pay Rs.6800 interest only for the period. The principal amount b...
The interest earned by Veer at SI is 24% of the sum invested. If he had invested for 4 years more, then interest received is 150% more than that of earl...
₹2,500, when invested for 8 years at a given rate of simple interest per year, amounted to ₹3,725 on maturity. What was the rate of simple interest...
At the rate of any compound interest rate, it gets tripled in 4 years, in how many years it will become 729 times its own?
