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Total number of marbles = 4+9+5+2=20 Number of favorable outcomes (green or white marbles) = 9 (green) +2 (white) = 11 Probability=P (green or white) = 11/ 20 Answer: The probability that a single marble chosen at random from the box is green or white is 11 /20.
A person invested 6,000 in a bank at compound interest compounded annually. After 3 years, the sum became 7,986. What was the rate of interest?
A sum of money was invested at 10% p.a. compound interest (compounded annually), and it amounted to Rs. 6050 at the end of 2 year...
Divide Rs. 53,285 into two parts such that the amount received from first part after 12 years is equal to the amount received from second part after 8 y...
Raj invests a certain amount, which grows to Rs. 7,200 at the end of 2 years and further increases to Rs. 8,640 at the end of 3 y...
What is the difference between the compound interest, when interest is compounded 5-monthly, and the simple interest on a sum of ₹12,000 for 1(1/4) y...
A principal amount is invested at an annual compound interest rate of y%. After 2 years, the investment grows to Rs. 7200, and after 4 years, it reaches...
Investing Rs. (4z + 400) at 20% p.a. compound interest for 3 years yields an interest of Rs. (5z - 800). Find the value of ‘z’.(Can calculate approx...
Compound interest on a certain sum of money for 2 years is Rs.2660 while the simple interest on the same sum for the same time period is Rs.2500. Find t...
Neena invested Rs.15000 in a fixed deposit scheme for 2 yrs at CI of 9% p.a. How much will Neena get on maturity of the fixed deposit?
A sum of money amounts to Rs 250 in 4 years and Rs 432 in 7 years at a compound rate of interest. What is the rate of interest per annum?
