Quantitative Aptitude - Arithmetic Ability Questions

The solution set of 4x -­ 3y = 10 and 3x + y = 14 is

What is the sum of the first 9 terms of an arithmetic progression if the first term is 7 and last term is 55?

The average of runs scored by a cricketer in his 99 innings is 99. How many runs will he have to score in his 100th innings so that his average of runs in 100 innings may be 100?

What will be the sum of the measures all the interior angles of a polygon having 14 sides?

After a discount of 34% an article is sold for Rs. 3168. What is the marked price (in Rs) of the article?

If cot(A/2) = x, then the value of x is

If 9x2 + 16y2 = 60 and 3x + 4y = 6, then the value of xy is

In the following question, select the odd number group from the given alternatives.