Question
Two pipes can alone independently fill a bucket in 10
and 12 minutes. Both are opened together for 3 minutes after which the second pipe is turned off. What is the time taken by the first pipe alone to fill the remaining portion of the bucket?Solution
After 3 minutes, the water fill by (A+B) = 3 × 11 = 33units Remaining water unit = 60 – 33 = 27 units This remaining unit water is filled by A in = 27/6 = 4.5 minutes
- The amount received on a certain sum of money at the rate of interest of 18% per annum simple interest after 8 years is Rs. 12200. What was the principal (...
Calculate the principal amount 'x' for which the simple interest accrued over 5 years at an annual rate of 24% is equivalent to the compound interest ea...
If he invested Rs. ________ in a scheme that offers a R% rate of interest for the 4T years on simple interest, then the interest received from the schem...
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?
A sum becomes 2.89 times ot itselt in 2 years when invested at compound interest (compounded annually). What is the annual rate of interest?
The difference between the simple interest for two years and the compound interest for one year on a sum of money is Rs.273. In which compound interest ...
The difference of simple interest from two banks on Rs. 8,000 in 3 years is Rs. 800. If the rate of interest per annum in two banks is R1 and R2, then w...
- A person invested Rs. 45,000 in two different schemes together. One scheme offers a simple interest of 9% p.a., while the other scheme offers a simple inte...
A sum of Rs 6,000 is invested at 8% simple interest per annum. What will be the interest earned in 2.5 years?
A borrowed Rs. 7000 from B for his business. How much amount A will return to B at the end of 30 months such that the sum was borrowed at simple interes...
Relevant for Exams:
