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Let the cost price of each pen be Rs.x So, cost price of 25 pens = Rs.25x According to the question, => (25x – x + 60)/25 = x – 4 => 24x + 60 = 25x – 100 => x = 160 Therefore, the cost price of the pen that was replaced is = Rs.160
In 3 years, Rs. 6000 amounts to Rs. 7986 at certain rate of compound Interest, compounded annually. Find the rate %?
A sum of ₹33,100 was divided between Timir and Monali in such a way that if both invested their shares at 10% compound interest per annum, the amount ...
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...
A sum of money amounts to ₹12,960 in 2 years at compound interest. If the rate of interest is 10% per annum, what is the principal amount?
The difference between simple and compound interest on a sum of Rs.1000 at the end of two years is Rs10. Find the total CI on a sum after 3 years is?
Avantika gets a SI of Rs.4800 on a certain principal at the rate of 6%p.a. in 4 years. What CI will she get on twice the principal in two years at the ...
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...
Rahul invested ₹4,000 in a scheme offering a compound interest rate of 16% per annum, compounded semi-annually. Calculate the t...
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...
If Rs. 5,000 is compounded at an annual interest rate of 8%, what will be the amount after 3 years?
