Question
If the volume of a sphere is 500 cm³, then find the
surface area of the sphere. [Take π = 3]Solution
ATQ, Let the radius of the sphere be ‘r’ cm. 
The simple interest on a sum of Rs. (6x + 100) for 4 years at 10% per annum is Rs. 1,200. Find the value of x.
The difference between the compound interest compounded annually and simple interest of a sum at 15% p.a. for 2 years is Rs. 270. Find the sum.
A and B started a business with initial investments of Rs. 25000 and Rs. 40000 respectively. After one year, a profit of Rs. 3250 is earned. A being a w...
- A man took a loan at a rate of 18% per annum simple interest. After 42 months, he paid Rs. 9,240 to clear his dues. Find the initial loan amount.
Rs 2000 are invested at 5% p.a simple interest. If the interest is added to the principal after every 10 years, the amount will become Rs 4000 after
Ragini borrowed ₹21,600 at a simple interest rate of 18% per annum, while Misthi borrowed ₹51,200 at an annual compound interest rate of 12.5%. Curr...
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.
The interest earned when a sum is invested at simple interest of 16% p.a., for 3 years, is Rs. 2400. What will be the total amount received after 2 year...
A certain sum of money becomes Rs. 1960 in 1 year and 3000 in 3 years at certain rate of simple interest. Find the sum of money invested.
A sum of Rs. 10,000 is invested at a rate of 8% per annum for 3 years. What will be the difference between the compound interest compounded annually and...
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