Quantitative Aptitude - Arithmetic Ability Questions

The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The 15th observation is

The diameters of two cylinders are in the ratio 3:2 and their volumes are equal. The ratio of their heights is

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

In the following question, four number pairs are given. The number on left side of (–) is related to the number of 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 given alternatives.

If x = (√5) + 1 and y = (√5) – 1, then what is the value of (x2/y2) + (y2/x2) + 4[(x/y) + (y/x)] + 6?

If the angles of a triangle are in the ratio of 1 : 4 : 7, then find the ratio of the greatest angle to the smallest angle.

If Tan θ = 4/3, then what is the value of Sin θ?

The value of aa-b+bb-a is