Quantitative Aptitude - Arithmetic Ability Questions

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 of marks secured by 45 students in division A of class X is 69, 65 students of division B is 65 and that of 50 students of division C is 63. Find the mean of marks of the students of three divisions of Class X.

The simplified value of 3-212-18 - 13 × 27 - 12 x 273 is closest to

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

If (x ­- 2) (x -­ p) = x2 - ax + 6, then the value of (a -­ p) is

What is the reflection of the point (-1 , 5) in the line x = 1?

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

After excluding stoppages, the speed of a bus is 60 kmph and after including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?