Quantitative Aptitude - Arithmetic Ability Questions

Select the odd word from the given alternatives.

What are the roots of the quadratic equation: x2 + 3x ­- 154 = 0

The mean of marks secured by 60 students in division A of class X is 66, 45 students of division B is 62 and that of 75 students of division C is 60. Find the mean of marks of the students of three divisions of Class X.

The mean score in a test of the 12 boys in a class was 16 while the overall mean of the 30 students in the class was 18.1. What was the mean score of the girls?

A train travelling at 76 kmph crosses a 450 m long platform in 27 seconds. What is the length of the train?

The greatest perfect square number of 6 digits is

If θ is acute angle and sin(θ+18°)= 1/2, then the value of θ in circular measure is

If sinC + sinD =X, then the value of X is?