Quantitative Aptitude - Arithmetic Ability Questions

The line passing through point (-3,1) and point (x,5) is parallel to the line passing through point (-2,-1) and point (6,3). What is the value of x?

In a committee there are 15 members. If two members whose ages are 45 years and 55 years are replaced by the two new members, then average age of 15 members is increased by 2 years. What is the average age (in years) of the new members?

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

What is the value of sin 5π/3?

Find length of the arc whose central angle is 45° and radius of the circle is 28 cm?

If sinθ+cosθsinθ-cosθ=3,then the value of sin4θ-cos4θ is

Two trains start from a certain place on two parallel tracks in the same direction. The speed of the trains are 45 Km/hr and 40 Km/hr respectively. The distance between the two trains after 45 minutes will be

Product of digits of a 2-digit number is 15. If we add 18 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.