Question
When do we celebrate the ‘National Science Day’
every year?Solution
The day is observed on 28th February every year to commemorate the discovery of Raman effect since 1986.
- The side of a square is 33⅓% less than the length of a rectangle whose area is 1800 cm² and breadth is 40 cm. What is the perimeter of the square?
After offering a discount of 28 percent on the sale of an item, a seller made a profit of 12.5 percent. If the cost price of the item was Rs. y. What wa...
The circumference of a circle is 33 cm and the length of the rectangle is 4 times the radius of the circle. Find the area (in cm2) of the rec...
A solid hemisphere of diameter 8 cm is placed over a cube whose side is 7 cm. Calculate the total surface area of the combined structure. [Use π = 3]
The perimeter of a floor a room is 36m. What is the area of four walls of the room, if its height is 6m?
A sum of Rs.10600 is to be divided among 6 brothers, 5 sisters and 3 aunts. If each sister receives four times as much as each aunt and each brother rec...
A well with 30 metre inner diameter is dug 6 m deep. Earth taken out of it, has been evenly spread all around it to a width of 15 m to form an embankmen...
If the circumference of a circle is 154 cm then find the area of the circle?
The breadth of a rectangle is increased by 5 cm, it will become twice the length of the rectangle. If the new perimeter is 312 cm, then find the origina...
The total surface area of a cylinder of diameter 10 cm is 330 square centimeters. Find the height of the cylinder.
