Quantitative Aptitude - Arithmetic Ability Questions

Select the odd word from the given alternatives.

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

If 5/2 - (6/5)(x - 15/2) = -x/5, then what is the value of x?

In the following question, select the missing number from the given series.
 
1912, 2012, 2133, 2277, 2446, ?

There are a total of 200 students in a school, of which 7/10th are boys. Find the number of girls in the school.

A 220 metres long train takes 33 seconds to cross a 440 metres long bridge. How much time (in seconds) will the train take to cross a 350 metres long bridge?

Which of the following numbers is a perfect square?

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 ?