Question
A seller makes a profit of 20% by selling 45 kg of pure
sugar. Later, he mixes some impurities into the sugar and sells the entire mixture at the original cost price of pure sugar. How much impurity (in kg) did he mix into the sugar?Solution
ATQ,
Let CP of sugar = ₹1/kg So, CP of 45 kg = ₹45 20% profit = ₹9 Selling Price = ₹45 + ₹9 = ₹54 Now, mixture sold at ₹1/kg (same as CP) Let impurity added = x kg So, 45+x = 54 ⇒ x = 9 kg
The simple interest received on a certain sum is Rs. 500 less than the sum invested. If the sum was invested at 10% p.a. for 6 years, then find the simp...
I: A sum of money is to be divided into two parts. One part is invested at 10% p.a. simple interest for 3 years, and the other part at 8% p.a. simple in...
Rs. 5,000 is invested for 3 years in scheme ‘X’ offering simple interest at 8% per annum. The interest earned is equal to the interest obtained when...
A man invested Rs.Y in a scheme S at 14% rate of simple interest for 7 years. After 7 years, he reinvested the amount received from the scheme S at same...
A certain sum of money becomes 4000 in 6 years and Rs. 5000 in 10 years at any certain rate of simple interest. Find the principal amount.
Raman paid Rs.9,600 in interest on a loan she obtained 5 years ago with a simple interest rate of 16%. What was the amount of the loan she had taken?
A Man deposited certain amount in the Bank at the end of each year. How much amount did he deposited at the end of each year at the rate of 15% simple I...
A sum of ₹6,450 is invested for 3.5 years at a certain annual rate of simple interest, yielding a total interest of ₹2,709. If ₹3,500 is then inve...
The difference between compound interest and simple interest on a sum for 2 years at 10% per annum, when the interest is compounded annually is Rs. 25. ...
A sum of money, invested for 8 years on 5% per annum simple interest, amounted to ₹287 on maturity.
What was the sun invested in?
