A man travels a distance of 10 miles at 20 miles per hour and returns over the same route at 30 miles per hour. What is his average speed for the round trip in miles per hour?

Created: 4 months ago | Updated: 3 months ago
Job Solution Mercantile Bank Ltd Mercantile Bank Ltd - Officer - 2004 গণিত
321
Add Description

Related Questions

A man has 72 green marbles and 108 red marbles. He decides to pack them into packets of the same size, each containing either all red or all green marbles. What is the greatest number of marbles he can put in each packet?

Created: 4 months ago | Updated: 2 months ago
Job Solution Mercantile Bank Ltd Mercantile Bank Ltd - Officer - 24.04.2009 গণিত
877
Add Description

A boat sails m miles upstream at the rate of r miles per hour. If the rate of the stream is s miles per hour, how long will it take the boat to return to its starting point?

Created: 4 months ago | Updated: 2 months ago
Job Solution Mercantile Bank Ltd Mercantile Bank Ltd - Officer - 24.04.2009 গণিত
2111
Add Description

A wheel rotates 10 times per minute and moves 20 feet during each rotation. How many feet does the wheel move in 1 hour?

Created: 4 months ago | Updated: 2 months ago
Job Solution Mercantile Bank Ltd Mercantile Bank Ltd - Officer - 24.04.2009 গণিত
1042
Add Description

The average of five numbers is 25. After one if the numbers is removed, the average of the remaining is 31. What number has been removed?

Created: 4 months ago | Updated: 2 months ago
Job Solution Mercantile Bank Ltd Mercantile Bank Ltd - Management Trainee Officer - 05.07.2013 গণিত
847
Add Description

An ambulance travels 10 miles at a speed of 75 mi,es per hour. How fast must the ambulance travel on the return trip if the round-trip travel time is to be 20 minutes?

Created: 4 months ago | Updated: 2 months ago
Job Solution Mercantile Bank Ltd Mercantile Bank Ltd - Management Trainee Officer - 05.07.2013 গণিত
1285
Add Description