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Time taken by pipe C to empty the full pool = 35 × 2 = 70 minutes Let the capacity of pool = 70 units Number of units of water filled by pipe A alone in one minute = 70/35 = 2 units Number of units of water filled by pipe B alone in one minute = 70/10 = 7 units Number of units of water emptied by pipe C alone in one minute = 70/70 = 1 units Required time taken = 70/(2 + 7 – 1) = 8.75 minutes
Suppose a specific amount is invested in a Life insurance policy at a simple interest rate of 15% per annum for 2 years, the interest earned amounts to ...
Rs. 13000 invested for 2 years in a scheme offering compound interest (compounded annually) of 15% p.a. gives an interest that is Rs. 10 less than the i...
A man invested Rs. 'B' at simple interest of 18% and Rs. 'B + 4000' at simple interest of 14% p.a., for 4 years each. If the interest earned from both i...
If Rs. 4000 becomes Rs. 5760 in 2 years at compound interest (compounded annually), then what is the annual rate of interest?
If the ratio of the sum invested and simple interest received after 1 year is 20:9 respectively, then find the rate of interest.
What sum of money at 120% compound interest per annum amounts to Rs.376.32 in 2 years?
A certain amount earns simple interest of Rs. 1360 after 4 years. Had the interest been 5% more, how much more interest would it have earned?
Simple interest earned on an amount of Rs.1600 at rate of R% per annum after 3 years is Rs.336. Find the simple interest earned on an amount of Rs.1500 ...
A person 'P' invests ₹24,000 at a simple interest rate of 15% per annum for 2 years, while Jay invests the same amount, ₹24,0...
A sum of ₹12,000 is invested at a rate of 5% per annum for 3 years. What will be the total amount at the end of the investment period, including inter...
