Related Questions

If the average height of boys in a hall is 180 cm and that of girls is 150 cm. If the average height of the gathering is 165 cm, then find the number of girls present in the hall if the number of boys present in the hall are 78 ?
The length of a rectangular hall is 5m more than its breadth. The area of the hall is 750m^2. The length of the hall is :
The length of the rectangular hall is 5 m more than its breadth. The area of the hall is 750 m². The length of the hall is: 
The length of a rectangular hall is 5m more than its breadth. The area of the hall is 750 sq.m. The length of the hall is
A silicon plate of thickness 1mm, breadth 10mm and length 100mm is placed in a magnetic field of 0.5 Wb/m2 acting perpendicular to its thickness. If 10-3 A current flows along its length, calculate the Hall voltage developed, if the Hall coefficient is 3.66×104 m3/Coulomb.
A heat pump is used to maintain a hall at 30°C when the atmospheric temperature is 15°C. The heat loss from the hall is 1200 kJ/min. Calculate the power required to run the heat pump if its C.O.P. is 40% of the Carnot machine working between the same temperature limits.
A person leaves from his office on his motorcycle to watch a movie. He rides 50 km towards east, turns right and rides for another 24 km. Finally, he turnstowards the west and rides 43 km further and reaches the movie hall. What is the minimum distance between the movie hall and his office?
A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is?
A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceilingis equal to the sum of the areas of four walls, the volume of the hall is:
A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is: