The water in a rectangular reservoir having a base 80m by 60m is 6.5m deep.In what time can the water be amplified by a pipe of which the cross section is a square of a side 20cm if the water runs through the pipe at the rate of 15km per hour?

Related Mcqs:

1. Two pipes function simultaneously the reservoir will be filled in 12 hours. One pipe fills reservoir 10 hours faster than the other. How many hours does the faster pipe take to fill the reservoir?

   A. 25 hrs
   B. 28 hrs
   C. 20 hrs
   D. 35 hrs

2. A big rectangular plot of area 4320 Sq.m is divided into 3 square shaped smaller plots by fencing parallel to the smaller side of the plot. However, some area of land was still left as a square plot could not be formed. So 3 more square shaped plots were formed by fencing parallel to the longer side of the original plot. Such that no area of the plot was left a surplus. What are the dimensions of the original plot?

   A. 160m × 27m
   B. 240m × 18m
   C. 120m × 36m
   D. 135m × 32m

3. A rectangular tank is 225 m by 162m at the base with what speed must water flow into it through an aperture 60cm by 45cm that the level may be raised 20cm in 5 hours?

   A. 5000 m/hr
   B. 5200m/hr
   C. 5400 m/hr
   D. 5600 m/hr

4. The area of a square is 4096 sq cm. Find the ratio of the breadth and the length of a rectangle whose length is twice the side of the square and breadth is 24 cm less than the side of the square.

   A. 18 : 5
   B. 7 : 16
   C. 5 : 14
   D. None of these

5. A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is?

   A. 6 hrs
   B. 10 hrs
   C. 15 hrs
   D. 30 hrs

6. A rectangular farm has to be fenced one long side, one short side and the diagonal. If the cost of fencing is Rs.10 per meter. The area of farm is 1200 m2 and the short side is 30 m long. How much would the job cost?

   A. Rs.700
   B. Rs.1200
   C. Rs.1400
   D. Rs.1500

7. If each side of a square is increased by 50% the ratio of the area of the resulting square to the area of the given square is__________?

   A. 5:4
   B. 9:4
   C. 4:5
   D. 4:9

8. The area of a rectangle is thrice that of a square. The length of the rectangle is 40 cm and the breadth of the rectangle is (3/2) times of the square. The side of the square in cm is__________?

   A. 15
   B. 20
   C. 30
   D. 60

9. A walks around a circular field at the rate of one round per hour while B runs around it at the rate of six rounds per hour. They start in the same direction from the same point at 7.30 a.m. They shall first cross each other at :___________?

   A. 7.42 a.m.
   B. 7.48 a.m.
   C. 8.10 a.m.
   D. 8.30 a.m.

10. A river 2m deep and 45 m wide is flowing at the rate of 3 kmph the amount of water that runs into the sea per minute is?

    A. 4500 M³
    B. 27000 M³
    C. 3000 M³
    D. 2700 M³