Ram walks 12 kilometer to the north then 10 km east and then 12 km south. How far is he from the starting point

A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work is

A wheel makes 48 revolutions in 3 seconds. How many revolutions does it make in 30 seconds

The mode of the observations 

2,3,7,8,4,2,4,3,9,2,7,4, is

If 20 men can build a wall 112 meters long in 6 days, what length of a similar wall can be built by 25 men in 3 days

The average of 5 nos. is 120. Later it was found that instead of entering correct value 15, data is wrongly entered as 5. Find the new correct average