Question
If an amount of Rs. 'x' is invested at an annual
compound interest rate of 20%, it grows to Rs. 'x + 2200' after 2 years. Calculate the value of 'x + 2200'.Solution
ATQ; (x + 2200) = x × {1 + (20/100)}2 (x + 2200) = x × (1.2)2 Or, x + 2200 = 1.44x Or, 2200 = 0.44x So, x = (2200/0.44) = 5000 Therefore, x + 2200 = 5000 + 2200 = 7200 Hence, option d.
If you divide a 24.6 m long wire in the ratio 12: 29, what will be the length of the longer piece?
- Find the volume of a sphere whose diameter is 10.5 cm. (Take π = 22/7)
A square whose diagonal is 12√ 2cm is made base of the pyramid. if height of the pyramid is 15cm, then what is the total surface area of the pyramid.(...
Find the length of a wire radius 0.40 cm which can completely cover the surface of a cylinder whose height is 1.6m and base radius 21 cm?
The mid points of AB and AC of a ∆ABC are X and Y, respectively. If BC + XY = 24 units, then the value of BC − XY is:
A cuboidal box with dimensions 12.5 cm (length), 7.5 cm (breadth), and 10 cm (height) is open from the top. The box is to be painted from the outside. I...
- Determine which solid has a greater volume.
I) A cuboid having dimensions 7 cm, 10 cm, and 6 cm
II) A cube with each edge measuring 9 cm The difference between the length and breadth of a rectangle is 23 m. If its perimeter is 174 m, then its area is
The diagonal and one side of a rectangular plot are 65 m and 63 m, respectively. What is the perimeter of the rectangular plot?
- Find the area of sector of a circle whose radius is 14 cm and angle subtended by the sector at centre of circle is 45°.
Relevant for Exams:
