KVS MATHEMATICS QUIZ 67

Length of a rectangular field is thrice its breadth. If perimeter of the field is $400 \mathrm{~m}$, then ( $2 \times$ length $+3 \times$ breadth) is equal to:

12 spherical balls of radius 10 cm are dropped in a bucket which is full of water up to the brim. The water flowed out is collected in a cylindrical jar of radius 20 cm. What is the height (in cm) of the water in the jar? (Take, π = 22/7)

An open tank is $25 \mathrm{~m}$ long, $12 \mathrm{~m}$ wide and $6 \mathrm{~m}$ deep. The cost (in Rs,) of plastering its walls and bottom from the inside at Rs. 15 per $\mathrm{m}^{2}$ is:

A wall $12 \mathrm{~m}$ long, $9 \mathrm{~m}$ high and $30 \mathrm{~cm}$ thick is to be constructed. How many bricks will be required if all bricks are of the same size of length $24 \mathrm{~cm}$, breadth $18 \mathrm{~cm}$ and height $15 \mathrm{~cm}$ ?

The length of a rectangular plot is thrice its breadth. The area of the plot 768 m². Find the perimeter of the plot.

If the difference between the circumference and diameter of a circle is $60 \mathrm{~cm}$ then the radius of the circle must be:

A path 6 m wide runs around and outside of a rectangular plot of length 10 m and breadth 8 m. The area (in m²) of the path is:

The length and breadth of a room are 13 m  and 7.5 m respectively. Find the largest possible size of the tile to cover the floor of the room with square tiles of equal size.

The diagonal of a rectangular field is 50 m and one of the sides is 40 m. If the cost of cutting the grass of the field is Rs. 27 per square metre then the total cost of cutting all grass of the rectangular field is:

A path 6 m wide runs around and outside of a rectangular plot of length 10 m and breadth 8 m. The area (in m²) of the path is: