Quantitative Aptitude - Arithmetic Ability Questions

If Sumita earns 75/4% more than her boyfriend, find the approximate % her boyfriend earns less than Sunita.

Which one of the following is an irrational number?

What is the area (in sq cm) of a rhombus if the lengths of the diagonals are 12 cm and 14 cm?

What is the reflection of the point (-0.5, 6) in the x-axis?

Select the odd word/letters/number/number pair from the given alternatives.

Coefficient of x2 in (x + 9)(6 -­ 4x) is

If Data Interpretation and Modern Maths were taught for a combined time of 96 hours, then for how much time (in hours) were Number system and Geometry
taught?

ABC is a right angled triangle in which ∠A = 90°, AB = 5 cm and AC = 12 cm. What is the approximate volume (in cm3) of the double cone formed by rotating the triangle about its hypotenuse?