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Let the speed of the boy in still water be x kmph. Then, (x + 4) × 5 = (x – 4) × 7 => 5x + 20 = 7x - 28 => 2x = 48 => x = 24 kmph
A man invested Rs. 'A' at simple interest of 10% and Rs. 'A + 3000' at simple interest of 8% p.a., for 6 years each. If the interest earned from both in...
Ankit placed some money in a fixed deposit that provides a compound interest rate of 16% per annum, compounded yearly. At the end of two years, he recei...
A certain sum of money will be doubled in 25 years at the rate of simple interest percent per annum is:
A person invested Rs. 75,000 at an annual compound interest rate of 12%, compounded annually for 12 months. How much more profit would he have earned if...
Rs.26000 is split into two sums such that the Simple Interest on one part for 5 years at 10% equals the Simple Interest on the other part for 6 years at...
Simple interest received at the rate of 15% p.a. for 2 years on a principal amount of Rs. 9000 is twice of the simple interest received at 10% p.a. for ...
The simple interest on a sum of Rs X in 5 years is (2/5)of the principal. What is the annual rate of interest?
A man deposited Rs. 16000 at 10% compound interest, compounded annually while Rs. 14000 at 13% simple interest per annum. What will be the difference be...
What is the compounded amount on a sum of 25,000 after three years at a rate of 12 percent per annum interest compounded yearly?
A sum increases by 60% in 10 years at a certain rate of simple interest per annum. By what percentage will the same sum increase in 6 years at the same ...
