Quantitative Aptitude - Arithmetic Ability Questions

The distance between the points (2, 7) and (k, -5) is 13. What is the value of k?

The area of a square is 72.25 cm². Find its perimeter (in cm).

Find the area (in sq units) enclosed by y = 0, x+6=0 and 2x-3y=6.

The LCM of 72 and 84 is:

A, B and C are three points on a circle with centre O. The tangent at C meets BA produced at T. If ∠ATC = 30° and ∠ACT = 48°,then what is the value of ∠AOB ?

Ticket for an adult is Rs 2200 and a child is Rs 990. One child goes free with two adults. If a group has 23 adults and 11 children, what is the discount the group gets?

15 years ago Cynthia was thrice as old as Brittany. The sum of their present ages is 94 years. How old is Brittany now?

A spaceship travels at 810 km/hr. How many metres does it travel in 1/5th of a second?