Question
Which law states that "the rate of heat loss of a body
is directly proportional to the temperature difference between the body and its surroundings"?Solution
Newton's Law of Cooling describes the rate at which an exposed body changes temperature through radiation.
The simple interest on Rs. ‘p’ at 15% p.a. for 2 years is 450 more than the simple interest on Rs. (p + 1000) at 10% p.a. for 2.5 years. Find the co...
Sneha deposited Rs. ‘R’ in a bank offering compound interest of 13% p.a. compounded annually. After 3 years, she invested the amount received from t...
A and B invested Rs.2x and Rs.2400 in a scheme at simple interest at 8% p.a. The investment time of B is 1 year more than that of A.The ratio of interes...
A certain sum amounts to ₹13200 after 4 years and to ₹16400 after 8 years at the same rate percent p.a. at simple interest. The simple interest (in ...
A certain amount, when invested at a simple interest rate of 18.2% per annum, grows to Rs. 14,552 in 4.5 years. What is the initi...
Rohit invested a sum on compound interest at 'R%' per annum (compounded annually), which amounts to ₹8,000 and ₹11,520 in 2 years and 4 years respec...
- A man took a loan at a rate of 18% per annum simple interest. After 42 months, he paid Rs. 9,240 to clear his dues. Find the initial loan amount.
The difference between the compound interest, compounded annually and simple interest on Rs. ‘P’ at the rate of 25% p.a. for 2 years, is Rs. 100. If...
What will be the differnce between SI & CI on Rs. 70000 for 3 years at rate of 40% per annum ?
A sum of Rs 12,000 becomes Rs 15,600 in 3 years at simple interest. Find the rate of interest per annum.
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