Mathematics
A rectangular tank is 25 m long and 7.5 m deep. If 540 m3 of water be drawn off the tank, the level of water in the tank goes down by 1.8 m. Calculate :
(i) the width of the tank
(ii) the capacity of the tank.
Related Questions
Water flows into a tank 150 m long and 100 m broad through a rectangular pipe whose cross section is 5 dm × 3.5 dm, at the speed of 15 km/hr. In what time, will the water be 7 m deep?
A swimming pool is 30 m long and 12 m broad. Its shallow and deep ends are 1.5 m and 3.5 m deep respectively. If the bottom of the pool slopes uniformly, how many litres of water will fill the pool?
The cross-section of a piece of metal 2 m in length is shown in the adjoining figure. Calculate :
(i) the area of its cross-section;
(ii) the volume of piece of metal;
(iii) the weight of piece of metal to the nearest kg, if 1 cm3 of the metal weighs 6.5 g.
