Quantitative Aptitude - Arithmetic Ability Questions

What is the value of 2sec2A?

If 4(2x + 3) > 5 -­ x and 5x - ­3(2x­ - 7) > 3x -­ 1, then x can take which of the following values?

An engineering student has to secure 25% marks to pass. He gets 45 and fails by 45 marks. Find the maximum marks.

The total surface area of a hemisphere is 166.32 sq cm, find its radius?

What will be the sum of the measures all the interior angles of a polygon having 14 sides?

One-third of Poojitha's age three years ago plus one-half of her age two years from now is twenty years. How old is she now?

A sump is filled by three tankers with uniform flow. The first two tankers operating simultaneously fill the sump in the same time during which the sump is filled by the third tanker alone. The second tanker fills the sump 5 hours faster than the first tanker and 4 hours slower than the third tanker. The time required by the first tanker is:

In a week, how many times are the hands of a clock at right angles with each other?