For the following questions answer them individually
What is the simple interest on Rs 5400 in 5 years at the rate of 12% per annum?
The bar graph given below represents the number of boys in a school using three apps for three months.
What is the total number of boys using the three apps in month of March?
Number of boys using Whatsapp in February is how much percent more than the number of boys using Facebook in February?
What is the percentage decrese in number of boys using Facebook from January to February?
Number of boys using Whatsapp in March is what percent of number of boys using Facebook in February?
For the following questions answer them individually
The perimeter of base of a right circular cone is 132 cm. If the height of the cone is 72 cm, then what is the total surface area (in $$cm^2$$) of the cone?
A solid metallic sphere of radius 14 cm is melted and recast into a cone with diameter of the base as 14 cm. What is the height (in cm) of the cone?
The radius of a wheel is 21 cm what is the distance (in cm) travelled by the wheel in 10 revolutions?
Three circles of radius 21 cm are placed in such a way that each circle touches the other two. What is the area of the portion enclosed by the three circles?
If the perimeter of a square is 80 cm, then what is the diagonal of the square (in cm)?