Q181 Given diagram shows a cubical room. Calculate the cost of flooring the room at the rate of Rs 20 per square meter

Q182 Given diagram shows a cubical room. How many cubical boxes of side length 200cm be stored in this room (assuming that the room is completely empty)?

Q183 Arya is jogging in a semi circular park shown in the given diagram. She takes the following route for jogging : A-C-D-B-A. Calculate the total distance covered by Arya.

Q184 Arya is jogging in a semi circular park shown in the given diagram. Calculate the length of the shortest route she can take to reach from A to B.

Q185 Arya is jogging in a semi circular park shown in the given diagram. If she covers a distance of 2 miles, how many rounds of the park did she complete?

Q186 A spherical ball of radius 21cm is sliced into two equal hemispheres. What is the percentage decrease in the total surface area of the sphere?

Q187 The volume and height of a cylinder are 1367 cubic cm and 23cm respectively. Calculate the total surface area of the cylinder.

Q188 A spherical ball of radius 21cm is sliced into two equal hemispheres. If the cost of painting the sphere red was Rs 1200, what will be cost of painting the two newly formed hemispheres blue?

Q189 A spherical ball of radius 21cm is sliced into two equal hemispheres. The cost of painting the sphere red was Rs 1200. Now, the two newly formed hemispheres are to be painted blue. What is the percentage increase in the cost of painting?

Q190 Given diagram shows a cubical room. What is the area of roof and floor of this room?