A conveyor belt delivers baggage at the rate of 3 tons in 5 minutes and a second conveyor belt delivers baggage at the rate of 1 ton in 2 minutes. How much time will it take to get 33 tons of baggage delivered using both the conveyor belts together? `25min30\ s e c` b. `30\ m in` c. `30\ m in` d. `4\ m in`

A cylindrical tank full of water is emptied by a pipe at the rate of 225 litres per minute. How much time will it take to empty half the tank, if the diameter of its base is 3 m and its height is 3.5 m? [Use pi=22//7 ]

A tyre has two punctures. The first puncture alone would have made the tyre flat in 9 minutes and the second alone would have done it in 6 minutes. If air leaks out at a constant rate, how long does it take both the punctures together to make it flat? a. 1 1/2 minutes b. 3 1/2 minutes c. 3 3/5 minutes d. 4 1/4 minutes

Sand drops from a stationary hopper at the rate of 5kg//s on to a conveyor belt moving with a constant speed of 2m//s . What is the force required to keep the belt moving and what is the power delivered by the motor, moving the belt?

A large tanker can he filled by two pipes A and B in 60 minutes and 40 minutes respectively. How many minutes will it take to fill the tanker from empty state if B is used for half the time and A and B fill it together for the other half? 15 m in b. 20 m in c. 30 m in d. 27. 5 m in

Two pipes A and B can fill a cistern in 12 minutes and 13 ininu4s respectively while a third pipe C can empty the full cistern in 6 minutes. A and Bare kept open for 5 minute in the beginning and the C is also opened. In what time is the cistern emptied? 30 m in b. 3 m in c. 45 m in d. 37 1/2m in

It takes 15 min to completely fill an oil tank. However the oil tank is being used via an outlet in the tank which can empty it in 30 min. If this outlet is open, how much time will it take to fill the tank completely? (A) 20 min (B) 25 min (C ) 30 min (D) 40 min

A boat man goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 5 km in stationary water? a. 40 minutes b. 1 hour c. 1 hr 15 min d. 1 hr 30 min

Ali travels a distanc of 300 m in 2 minutes and 30 seconds .What is his speed in kmph ? A. 6.9 B. 7.1 C. 7.2 D. 7.3

Two pipes AS and B can fill a tank in 15 minutes and 20 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank? 10min20 s e c b. 11min45 s e c c. 12min30 s e c d. 14min40 s e c

In what time would a cistern be filled by three pipes whose diameters are 1 cm,1 1/3 cm and 2 an running together, when the largest alone will fill it in 61 minutes, the amount of water flowing in by each pipe, being proportional to the square of its diameter? 25 m inu t e s b. 30 m inu t e s c. 36 m inu t e s d. 40 m inu t e s