Quantitative Aptitude - Arithmetic Ability Questions

Find the odd word/letters/numbers pair from the given alternatives.

A cylinder of radius 4.5 cm and height 12 cm just fits in another cylinder completely with their axis perpendicular. What is the radius (in cm) of second cylinder?

Which of the following is correct?

If y=2-x1+x, then what is the value of 1y+1 + 2y+1y2-1 ?

If a triangle has its orthocenter and centroid of equal length, then which of the following is TRUE about the triangle?

A boat is sailing towards a lighthouse of height 20√3 m at a certain speed. The angle of elevation of the top of the lighthouse changes from 30° to 60° in 10 seconds. What is the time taken (in seconds) by the boat to reach the lighthouse from its initial position?

ABC is an equilateral triangle and P is the orthocenter of the triangle, then what is the value (in degrees) of ∠BPC?

­ A wooden bowl is in shape of a hollow hemisphere of internal radius 8 cm and thickness 1 cm. Find the total surface area of the bowl?