Question
The income of βAβ increases by 35% every year. If
the present income of βAβ is Rs. 45562.5 and his expenditure 2 years ago from now was Rs. 12000, then find his savings 2 years ago from now.Solution
According to the question, Income of βAβ 2 years ago = 45562.5/(1.35)2 = Rs. 25000 Required savings = 25000 β 12000 = Rs. 13000
- Calculate the volume of a sphere whose diameter measures 21 cm. (Take Ο = 22/7) 
- A water tank is shaped like a right circular cylinder with a height of 10 cm and a base radius of 2.8 cm. What is its volume? (Use Ο = 22/7)
- If the curved surface area of a cylindrical drum is 660 cmΒ² and its height is 10 cm, then find the diameter of the drum.
- The length of a rectangle is 15 cm more than its width. If the area of the rectangle is 240 cmΒ², what is the perimeter of the rectangle? 
- A cone has a height of 28 cm. A sphere is melted to form this cone. If the radius of the sphere is 7 cm, find the radius of the base of the cone. 
- A girl spent 20% of her monthly income on clothing. Of the remaining, she spent on travel and food in the ratio of 3:2. If the difference of the income ... 
- The perimeter of 4 squares is 28 cm, 36 cm, 40 cm and 56 cm respectively. What will be the area of the square having perimeter equal to sum of edges of ... 
- The area of four walls of a room is 140 cm2. If the length and breadth of the room were equal and the height of the room is 5 cm, then what i... 
- Angle bisectors of Q and R meet at point S, inside the triangle PQR. If angle QSR = 126Λ , then the measure of angle P is: 
- If 35 grams of sugar is further added to a 20 percent sugar solution, the solution then becomes a 36 percent sugar solution. What was the initial quanti...