Quantitative Aptitude - Arithmetic Ability Questions

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

The angle of elevation of the top of a tower from a point A on the ground is 30°. On moving a distance of 20 metres towards the foot of the tower to a point B, the angle of elevation increases to 60°. The height of the tower in meters is

4 + 16 x -12 x 24 - 13 - 3 ÷ 20 - 4 = ?

What is the value of Sec 30° + Tan 60°?

The difference between simple and compound interest (compounded annually) on a sum of money for 3 years at 10% per annum is Rs. 93. The sum (in Rs.) is:

Aparna changes the marked price of an item to 50% above its C.P. What % of discount allowed in approximately to gain 10%?

If x+3y=-3x+y, then x22y2 is equal to

In the given Pie-chart, the comparative study of the production of Rice, Wheat, Sugar and Tea of a country is given. Study the Pie-Chart and answer the following questions.

From this diagram, the ratio of sum of wheat and sugar production to difference in production of rice and tea is