Quantitative Aptitude - Arithmetic Ability Questions

Choose the word is least like the other words in the group

A man covered a certain distance by a train running at the speed of 50 km/hr and covers the same distance back by walking at the speed of 5 km/hr. Ifthe whole journey took 5 hours 30 minutes, then what was the distance (in km) of one side?

A car travels a certain distance at 34 km/h and comes back at 66 km/h. What is the average speed for total journey?

A person driving at the speed of 40 kmph reaches office 1 minute early while he reaches 3 minutes late if driving at 36 kmph. What is the distance in km that she is covering?

P and Q can do a project in 20 and 12 days respectively. In how many days can they complete 40% of the project if they work together?

There were 24 studentsina class. One of them, who was 18 years old, left the class and his place was filled up by a new comer.Ifthe average of the class was thereby lowered by 1 month, the age of new comer is-

If X+Y=3,XY=2, find the value of X3-Y3

Simple interest on a certain sum of money for 3 years at 10% per annum is half the compound interest on Rs 6000 for 2 years at 10% per annum. The sum placed on simple interest is