Class V

Which of the following is a reasonable measure for the area of a classroom ?
  1. 100 square inches
  2. 100 square feet
  3. 100 square yards
  4. 100 square miles
The ratio between the length and the breadth of a rectangular park is 3 : 2. If a man cycling along the boundary of the park at the speed of 12 km/hr completes one round in 8 minutes, then the area of the park (in sq. m) is
  1. 15360
  2. 153600
  3. 30720
  4. 307200
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
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%
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
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