Question
If rxy = 0.75, then correlation coefficient between u =
1.5X and v = 2Y is:Solution
r is not affected by change of scale.
Akshay invested Rs. 2240 in two schemes P and Q in the respective ratio of 9:7. Scheme P and Q are offering simple interest at the rate of 10% per annum...
Atul has Rs.200 with him. He invested 40% of the amount at 5% p.a. for 6 years and rest at 20% p.a. for 5 years. Find the sum of simple interests receiv...
An amount is invested at a compound interest rate of 21% per annum, with compounding occurring once every 10 months. After 20 months, the interest earne...
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The interest received on investing Rs. (6p - 200) on simple interest at 25% p.a. for 2 years is Rs. (2p + 400). Find the ratio (p - 200) :(p + 100)
A sum of money gets thrice in 10 years , in how many years it will be 27 times in CI?
Rs. 90Y when invested for 5 years at simple interest of 12% p.a., yields an interest of Rs. 2700. If Rs. 110Y is invested for 3 years at compound intere...
What is the simple interest on Rs. 8000 at the rate of 7.5% per annum for 4 years?
- Arun deposited Rs 18000 in PNB for 3 years and got a total amount of Rs 23400 whereas Varun deposited Rs 25000 in SBI and got a total interest of Rs 4000 a...
- If Rs. 8,000 grows to Rs. 10,960 in 2 years at simple interest, what is the yearly interest rate?
