Question
The income of a person is Rs.13000 and his expenditure
is Rs.8000. In the next year his income and expenditure is increased by 10% and 20% respectively. His saving is what percent less than that of the previous saving?Solution
Initial Savings = 13000 – 8000 = Rs. 5000 Next year, Income = 13000 × (110/100) = Rs.14300 Expenditure = 8000 × (120/100) = Rs.9600 Saving = 14300 – 9600 = Rs.4700 Required % = [(5000 – 4700)/5000] × 100 = 6%
A circular wire enclosing the area of 9,856 cm² is bent to form a square. How much area will be enclosed by that wire?
- The radii of two cylinders are in the ratio of 5: 6 and their heights are in the ratio of 4: 3. The ratio of their volume is
If the curved surface area of a cylinder is 128 p cm² and its height is 16 cm. then, what is the volume of the cylinder?(in cm 3 )
The curved surface area of a cone exceeds that of a cylinder by __ cm². The radius of the cone is twice that of the cylinder. The area of the cylinder...
A sphere is cut into hemisphere. One of them is used as bowl. It takes 8 bowlfuls of this to fill a conical vessel of height 12cm and radius 6cm. Then f...
If the two adjacent sides of a rectangle are x cm and x – 10 cm and its perimeter is 96 cm then find its area?
If the ratio of height and base of a parallelogram is 8:5, respectively and its area is 640 cm2, then find the difference between height and base of the...
(160/3)% of the raindrops could have been collected, when 5 cm of rain has fallen on a part of land of area 1.8 km2, in a tank having a 240 m...
A cylindrical tank has a height of 10 meters and a radius of 7 meters. What is the volume of the tank?
Quantity I: Â The total area of a Square and rectangle is 546 Sq cm. The side of the square is 14 cm. What is the sum of the perimeter of square and r...