Rayan crosses a 400m bridge in 3 minutes. What is speed?

Related Mcqs:

1. Rayan invested certain amount for two rates of simple interests at 6% p.a. and 7% p.a. What is the ratio of Rayan’s investments if the interests from those investments are equal?

   A. 4 : 3
   B. 3 : 2
   C. 6 : 5
   D. 7 : 6
   E. None of these

2. Two pipes can fill a tank in 18 minutes and 15 minutes. An outlet pipe can empty the tank in 45 minutes. If all the pipes are opened when the tank is empty, then how many minutes will it take to fill the tank?

   A. 12
   B. 13
   C. 11
   D. 10

3. Pipe A can fill a tank in 16 minutes and pipe B cam empty it in 24 minutes. If both the pipes are opened together after how many minutes should pipe B be closed, so that the tank is filled in 30 minutes?

   A. 20
   B. 24
   C. 23
   D. None of these

4. Three pipes A, B and C can fill a tank from empty to full in 30 minutes, 20 minutes and 10 minutes respectively. When the tank is empty, all the three pipes are opened. A, B and C discharge chemical solutions P, Q and R respectively. What is the proportion of solution R in the liquid in the tank after 3 minutes?

   A. 5/11
   B. 6/11
   C. 7/11
   D. 8/11

5. A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?

   A. 8.2
   B. 4.2
   C. 6.1
   D. 7.2

6. Yalmaz can cover a distance of 400 metres in 2 minutes. Rayan can cover 1 km in 300 seconds. Find the ratio of their speeds.

   A. 2:5
   B. 4:3
   C. 1:2
   D. 1:1

7. A cyclist covers a certain distance in 50 minutes at a speed of 24 kmph. To cover the same distance in 40 minutes, he should travel at a speed of__________?

   A. 30 kmph
   B. 27 kmph
   C. 25 kmph
   D. 20 kmph

8. Two pipes A and B can separately fill a tank in 2 minutes and 15 minutes respectively. Both the pipes are opened together but 4 minutes after the start the pipe A is turned off. How much time will it take to fill the tank?

   A. 9 min
   B. 10 min
   C. 11 min
   D. 12 min

9. Two taps can separately fill a cistern 10 minutes and 15 minutes respectively and when the waste pipe is open, they can together fill it in 18 minutes. The waste pipe can empty the full cistern in?

   A. 7 min
   B. 13 min
   C. 23 min
   D. 9 min

10. Pipes A and B can fill a cistern in 8 and 24 minutes respectively. They are opened an alternate minutes. Find how many minutes, the cistern shall be full?

    A. 6 min
    B. 12 min
    C. 19 min
    D. 10 min