Question
A sum is invested at a certain rate (p.a.) of compound
interest (compounded annually). The interest earned after 1st year and after 2 years of investment is Rs. 2,500 and Rs. 2,875. Find the rate of interest per annum.Solution
ATQ,
Interest received in 2nd year = 2875 - 2500 = Rs. 375, which is equal to
interest earned on Rs. 2,500.
Rate of interest = (375/2500) × 100 = 15%
The diameter of a circle is 75 cm less than the circumference. What is the diameter of the circle in cm?
Consider a rectangle where the length to breadth ratio is 4:3. Given that the area of the rectangle is 48 cm², a square is constructed using the rectan...
Find the time taken by a pipe, which releases 94.5 m3 of water in a minute to fill an empty cylindrical tank of radius 18 m and height 14 m. ...
The area of a square is 441 square centimeters whose side is half the radius of a circle The circumference of a circle is equal to the width of a rectan...
The total surface area of a cylinder of diameter 10 cm is 330 square centimeters. Find the height of the cylinder.
Sukhvir sold an item at a discount of 12.5 percent on the marked price. If the selling price of the item for Sukhvir was Rs. 784, what was the marked pr...
A solid sphere is melted to form 8 smaller spheres of equal radius. Find the radius ratio (small : original).
Water flows into a tank which is 200m long and 120 m wide, through a pipe of cross- section 0.3 m × 0.2 m at 20 km/hr. then the time ( in hr) for ...
Area of a rectangle is equal to the total surface area of a hemisphere having volume 1458 cm³ . Find the perimeter of the rectangle if its length is 12...
The perimeter of a rectangle is 68 cm more than its length. If the length and breadth of the rectangle are in the ratio 7:5, respectively, then find the...
