Class V

What is the least number of squares tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad ?
  1. 814
  2. 820
  3. 840
  4. 844
The diagonal of a rectangle is 41 cm and its area is 20 sq. cm. The perimeter of the rectangle must be :
  1. 9 cm
  2. 18 cm
  3. 20 cm
  4. 41 cm
The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle?
  1. 16 cm
  2. 24 cm
  3. Data inadequate
  4. 18
The difference between the length and breadth of a rectangle is 23 m. If its perimeter is 206 m, then its area is :
  1. 1520 m2
  2. 2420 m2
  3. 2480 m2
  4. 2520 m2
An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:
  1. 2%
  2. 2.02%
  3. 4%
  4. 4.04%
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