Quantitative Aptitude - Arithmetic Ability Questions

In an exam, the avarage marks obtained by John in English, Maths, Hindi and Drawing were 50. His average marks in Maths, Science, Social Studies and Craft were 70. If the average marks in all seven subjects is 58, his score in maths was

In a cricket match, the scores of the players are considered such that coefficient of variation of scores is 16 and mean is 25 then the variance is

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

Find the odd words/letters/number from the given alternatives.

Rearrange the jumbled up letters in their natural sequence and find the odd one out.

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

If a+1b = 1 and b+1c = 1 then c+1a = ?

If x2 – 4x + 1 = 0, then what is the value of x9 + x7 – 194x5 – 194x3?