Let E be the event of getting an even number on one die and an odd number on the other E = {( (1,2) (1,4) (1,6) (2,1) (2,3) (2,5) (3,2) (3,4) (3,6) (4,1) (4,3) (4,5) (5,2) (5,4) (5,6) (6,1) (6,3) (6,5)} So, n (E) = 18 n(E) / n(S) = 18/36 = ½.
Anil travels a certain distance by car at a speed of 75 km/h and comes back to the starting point via same route by bike with speed of 45 km/h. Find the...
A man travelled a total distance of 150 km. He travelled first 100 km on car with a speed of 20 km/h and rest of the distance on bike whose speed is 10 ...
A person covers a distance of 360 km in 4 hours. If the person's speed decreases by 16 (2/3)% and the distance to be covered increases by 25%, how long ...
X men can complete the piece of work in 32 days and (X + 45) men can complete the same work in 15 days less than that of days taken by X men. Find the v...
A diesel truck travelled for 10 hours with a speed of 35 km/h. If the truck travels for 5 km per 1 litre of diesel, then find the quantity of diesel use...
In every 20minutes the time of a watch increases by 5 minutes. After setting the correct time at 5 am,What time will it show after 12 hours?
Three runners A, B and C run a race, with runner A finishing 12 meters ahead of runner B and 18 meters ahead of runner C, in another race of same type r...
Average speed of ‘A’ during a 20-hour journey is 24 km/h. If he covered the first 320 km of his journey at a speed of 20 km/h, then find the speed a...
A train covers a distance between stations Dehradun to Rudrapur in 90minutes. If the speed is reduced by 10 km/hr, it will cover the same distance in 9...
A train crosses a stationary object in 10 seconds. What is the length of the train if the speed of the train is 27 m/s?