The area of the floor of a room is 20 m² that of a longer wall 15 m² and of the shorter wall 12 m², find the edge of the new cube?

Related Mcqs:

1. The edge of three cubes of metal is 3 dm, 4 dm and 5 dm. They are melted and formed into a single cube. Find the edge of the new cube?

   A. 3 dm
   B. 4 dm
   C. 5 dm
   D. 6 dm

2. The edges of three iron cubes are 6cm; 8cm; 10cm respectively. A new cube was made by melting them. Find the edge of the new cube?

   A. 8 cm
   B. 12 cm
   C. 14 cm
   D. 10 cm

3. Three cubes of metal whose edges are 9, 12 and 15 cm respectively, are melted and one new cube is made. Find the edge of the new cube?

   A. 21 cm
   B. 19 cm
   C. 32 cm
   D. 18 cm

4. The length of a rectangular floor is more than its breadth by 200%. If Rs. 324 is required to paint the floor at the rate of Rs. 3 per sq m, then what would be the length of the floor?

   A. 27 m
   B. 24 m
   C. 18 m
   D. 21 m

5. Jameel gets on the elevator at the 11th floor of a building and rides up at the rate of 57 floors per minute. At the same time, Nasir gets on an elevator at the 51st floor of the same building and rides down at the rate of 63 floors per minute. If they continue travelling at these rates, then at which floor will their paths cross?

   A. 19
   B. 28
   C. 30
   D. 37

6. Bilal’s room has a floor of 8m by 4m. He decides to tile the floor with tiles of 25cm x 20 cm. How many tiles will he need?

   A. 320 tiles
   B. 640 tiles
   C. 160 tiles
   D. 6.4 tiles

7. A room is 6 meters 24 centimeters in length and 4 meters 32 centimeters in width. Find the least number of square tiles of equal size required to cover the entire floor of the room?

   A. 110
   B. 124
   C. 96
   D. 117

8. Find the number of square tiles to cover the floor of a room measuring 4 m * 9 m leaving 0.25 m space around the room. A side of square tile is given to be 25 cms?

   A. 425
   B. 476
   C. 450
   D. 350

9. A room is 12 ¼ m long and 7w wide. The maximum length of a square tile to fill the floor of the room with whole number of it’s tiles should be_________?

   A. 200cm
   B. 175cm
   C. 125cm
   D. 150cm

10. The perimeter of a floor of a room is 18m.What is the area of four walls of the room if it; a height is 3m?

    A. 21 Sq.m
    B. 42 Sq.m
    C. 54 Sq.m
    D. 108 Sq.m