Question
Select the correct direct form of the given
sentence. The air hostess said that the passengers must wear face masks during the flight.Solution
‘must wear’ does not undergo change when changed into reported speech.
A right square pyramid has a square base of side 10 cm and vertical height 12 cm. Find:
(i) its volume,
(ii) its slant height,
(iii...
Find the time taken by a pipe, which releases 121.5 m3 of water in a minute to fill an empty cylindrical tank of radius 9 m and height 10 m. ...
The surface area of the two spheres are in the ratio9:16. Their volumes will be in the ratio
If the ratio of areas of two circle is 36:49, then the ratio of their circumferences will be:
The ratio of the curved surface area and total surface area of a cylinder is 16 : 17 . If the curved surface area of the cylinder is 308m². Find th...
Length and breadth of a rectangular field is (x + 6) cm and (x – 3) cm, respectively. If the cost of ploughing the field at a rate of Rs. 10 per cm² ...

The area of the rectangular field is 800 m² and its perimeter is 104 m. Find how much percent less the breadth of the field is compared to the length o...
The difference between the length and breadth of a rectangle is 23 m. If its perimeter is 174 m, then its area is
The side of a square is equal to the perimeter of an equilateral triangle of area 36√3 cm2 . Find the area of the square?