Rosa can eat 32 rosogollas in one hour. Her sister Lila needs three hours to eat the same number. How much time will they take to eat 32 rosogollas together? a. `4` minutes b. `7` minutes c. `90` minutes d. none of these

The flowers in a basket double every minute and the basket gets full in one hour.In how much time,the basket was (1)/(32) full? (a) 12 minutes (b) 32 minutes (c) 45 minutes (d) 55 minutes

A fast train covers 360 km in 3 hours 20 minutes .How much time will it takes to cover a distance of 90 km ?

Bacterial cell divides in every minute it takes one hour to fill up a cup. How much time be taken to fill half the cup

Ronald and Elan are working on an assignment. Ronald takes 6 hours to type 32 pages on a computer, while Elan takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages? a. 7 hours 30 minutes b. 8 hours c. 8 hours 15 minutes d. 8 hours 25 minutes

If (4)/(5) of a water tank is filled in 1 hour,how much time will be required to fill the rest of it? 20 minutes (b) 15 minutes 12 minutes (d) 10 minutes

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

Pipe A can fill an empty cistern in 6.8 hours. Pipe B can fill it up in 10.2 hours. Only Pipe B is turned on for 1.7 hours after which Pipe A is also turned on. How much time will it take in all to fill up the cistern? Options are (a) 5 hours 6 minutes (b) 5 hours 12 minutes (c) 5 hours 5 minute (d) 5 hours 10 minutes.

A cell divides every minute. It will fill a 100 ml beaker in one hour. How much time would it take to fill 50 ml beaker

A tap can empty a tank in one hour. A second tap can empty it in 30 minutes. If both the taps operate simultaneously, how much time is needed to empty the tank?