Quantitative Aptitude - Arithmetic Ability Questions

The sum of digits of a two-digit number is 9. When the digits are reversed, the number decreases by 45. Find the changed number.

What is the value of 99992 x 100008?

An angle is four times its complementary angle. What is the measure of the angle?

If (-1/2) * ( x - 5) + 3 = -5/2, then what is the value of x?

When a number is increased by 26, it becomes 113% of itself. What is the number?

A boat cover row 12 km upstream in 4 hours and can cover the same distance downstream in 3 hours. What is the speed (in km/hr) of the boat in still water?

The length of the diagonal and the breadth of a rectangle are 17 cm and 8 cm respectively. Find its perimeter (in cm).

Incentre of Δ ABC is I. ∠ABC = 90° and ∠ACB = 70°. ∠AIC is