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  • Question
  • A tank is 25m long 12m wide and 6m deep. The cost of plastering its walls and bottom at 75 paise per sq m is


  • Options
  • A. Rs. 258
  • B. Rs. 358
  • C. Rs. 458
  • D. Rs. 558

  • Correct Answer
  • Rs. 558 

    Explanation

    Area to be plastered =  2 l + b × h + l × b  

    = 2 25 + 12 × 6 + 25 × 12 = 744 s q . m  

    Cost of plastering =  744 × 75 100 = R s . 558                        


  • Area problems


    Search Results


    • 1. The base of a triangular field is three times its altitude. If the cost of cultivating the field at Rs. 24.68 per hectare be Rs. 333.18, find its base and height.

    • Options
    • A. B=900;H=300
    • B. B=300;H=900
    • C. B=600;H=700
    • D. B=500;H=900
    • Discuss
    • 2. The altitude drawn to the base of an isosceles triangle is 8cm and the perimeter is 32cm. Find the area of the triangle?

    • Options
    • A. 50
    • B. 60
    • C. 70
    • D. 80
    • Discuss
    • 3. The area of the largest circle that can be drawn inside a rectangle with sides 18cm by 14cm is

    • Options
    • A. 49
    • B. 154
    • C. 378
    • D. 1078
    • Discuss
    • 4. The ratio of the area of a square to that of the square drawn on its diagonal is

    • Options
    • A. 1:2
    • B. 2;3
    • C. 3:1
    • D. 4:1
    • Discuss
    • 5. A wire can be bent in the form of a circle of radius 56cm. If it is bent in the form of a square, then its area will be

    • Options
    • A. 7744
    • B. 8844
    • C. 5544
    • D. 4444
    • Discuss
    • 6. The base of a parallelogram is twice its height. If the area of the parallelogram is 338 sq.cm. Find its height?

    • Options
    • A. 13 cm
    • B. 14 cm
    • C. 16 cm
    • D. 12 cm
    • Discuss
    • 7. The ratios of areas of two squares, one having its diagonal double than the other is

    • Options
    • A. 2:1
    • B. 2:3
    • C. 3:1
    • D. 4:1
    • Discuss
    • 8. A room 5m 55cm long and 3m 74cm broad is to be paved with square tiles.Find the least number of square tiles required to cover the floor?

    • Options
    • A. 156
    • B. 166
    • C. 176
    • D. 186
    • Discuss
    • 9. The length of a rectangle is twice its breadth. If its length is decreased by 5 cm and breadth is increased by 5 cm, the area of the rectangle is increased by 75 sq.cm. Find the length of the rectangle?

    • Options
    • A. 10cm
    • B. 20cm
    • C. 30cm
    • D. 40cm
    • Discuss
    • 10. The diameter of the driving wheel of a bus is 140 cm. How many revolution, per minute must the wheel make in order to keep a speed of 66 kmph ?

    • Options
    • A. 150
    • B. 250
    • C. 350
    • D. 550
    • Discuss


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