Quantitative Aptitude - Arithmetic Ability Questions

Select the odd word from the given alternatives.

Two trains start moving from stations S and R. Both trains move towards each other at speeds of 35 km/hr and 42 km/hr respectively. When they meet each other, the second train has travelled 90 km more than the first. What is the distance (in km) between S and R?

G is the centroid of the equilateral triangle ABC, if AB = 9cm then AG is equal to

If a+1a=1,then the value of a2-a+1a2+a+1 is a≠0

A and B undertake a piece of work for Rs. 250 . A alone can do that work in 5 days and B alone can do that work in 15 days . With the help of C, they finish the work in 3 days . If every one gets paid in proportion to work done by them, the amount C will get is 

Findout the odd word/letters/number/number pair from the given alternatives.

All rational numbers are ____ numbers.

If cos -225° = x, then the value of x is