Quantitative Aptitude - Arithmetic Ability Questions

In the following question, select the odd letter/letters from the given alternatives.

In the last financial year, a car company sold 41,800 cars . In this year, the target is to sell 51,300 cars . By what percent must the sale be increased ?

The ratio of two positive numbers is 3:4. The sum of their squares is 400. What is the sum of the numbers?

If 2(3x + 5) > 4x -­ 5 < 3x + 2; then x can take which of the following values?

What is the area (in sq cm) of a circle whose circumference is 22 cm?

What is the slope of the line perpendicular to the line passing through the points (-5 , 1) and (-2 , 0)?

A batsman in his 12th innings makes a score of 120, and thereby increase his average by 5. The average score after 12th innings is

The railway fares of air conditioned sleeper and ordinary sleeper class are in the ratio 4:1. The number of passengers travelled by air conditioned sleeper and ordinary sleeper classes were in the ratio 3:25. If the total collection was Rs. 37,000, how much did air conditioner sleeper passengers pay?