Question
The arithmetic means of the following data
is.23,17,20,19,21,20,20Solution
arithmetic mean = sum of total numbers /total number  = (23+17+20+19+21+20+20) / 7 =140/7 arithmetic mean =20
If Rs. 35,000 amounts to Rs. 42350 in two years compounded annually, find the rate of interest per annum.Â
A certain sum of money becomes 4000 in 6 years and Rs. 5000 in 10 years at any certain rate of simple interest. Find the principal amount.
What will be the differnce between SI & CI on Rs. 15000 for 3 years at rate of 10% per annum ?
- A man takes a loan of Rs. 50,000 from a bank at a simple interest rate of 10% per annum. He immediately lends the same amount to a friend at a compound int...
The simple interest received on a certain sum is Rs. 450 less than the sum invested. If the sum was invested at 10% p.a. for 5 years, then find the simp...
Sameer invested Rs. (R + 1000) at simple interest of 20% p.a. for 3 years. Ajeet invested Rs. (R - 4000) at compound interest of 20% p.a. for 3 years. I...
- The amount of simple interest earned on ₹4080 at an annual rate of 7.5% for t years is compared to the simple interest earned on ₹3250 at an annual rat...
A sum of money invested for 2 years at 20% compounded annually and similar money invested for 3 years on simple interest at 10% per annum. If the differ...
A man buys a laptop at Rs. 18,000. He pays Rs.6,000 at once and the rest after 18 months on which he is charging a simple interest at the rate of 15% p...
A sum of ₹10,000 is invested at 6% compound interest per annum for 2 years, compounded annually. What will be the total amount after 2 years?
