Quantitative Aptitude - Arithmetic Ability Questions

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the

The variance of a set of data is 121. Then the standard deviation of the data is

If 2sec2x - tan2x = 5 and 0° ≤ x ≤ 90°, then x = ?

The LCM of 14, 21 and 35 is

One internal angle of a rhombus of side 12 cm is 120°. What is the length of its longer diagonal?

When Vijay sells 12 pens, he gains the selling price of 2 pens. Calculate his % profit?

Which of the following is in ascending order?

In the following question, select the odd word pair from the given alternatives.