Quantitative Aptitude - Arithmetic Ability Questions

The mean of marks secured by 35 students in division A of class X is 65, 45 students of division B is 61 and that of 70 students of division C is 59. What is the mean of marks of the students of three divisions of Class X?

The corners of a square of side ‘a’ are cut away so as to form a regular octagon. What is the side of the octagon?

Two trains are moving in the same direction at the speed of 23 km/hr and 77 km/hr. The time taken by faster train to cross a man sitting in the slower train is 40 seconds. What will be the length (in metres) of the faster train?

At what point does the line 2x - 3y = 6 cuts the X axis?

If 2 + 2x < 3 + 5x and 3(x -­ 2) < 5 -­ x; then x can take which of the following values?

Find the odd word/letter/number from the given alternatives

All rational numbers are ____ numbers.

A bank offers 5% compound interest per half year. A customer deposits Rs 4800 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest?