Quantitative Aptitude - Arithmetic Ability Questions

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

For triangle ABC, what would be the equation of median AD if co-ordinates of A, B and C are (-5,4), (-4,0) and (-2,2) respectively?

If a sum of money doubles itself in 8 yrs, then the interest rate in percentage is ?

Yaman sold an item at a loss of 10%. If he had sold it for Rs.57 more, he would have made a profit of 20%. What should be the selling price of the item to make a profit of 30%?

If x+3y=-3x+y, then x22y2 is equal to

If in a two digit number, the digit at unit place is y and the digit at tens place is 5, then the number is

A right circular cylinder has height as 18 cm and radius as 7 cm. The cylinder is cut in three equal parts (by 2 cuts parallel to base). What is the percentage increase in total surface area?

If a cylinder of radius 7 cm and height 9 cm is melted and constructed into a cone of the same radius, what will be the height of this cone?