Quantitative Aptitude - Arithmetic Ability Questions

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:3, what is the ratio of area of ΔADE and area of quadrilateral BDEC?

What is the sum of all prime numbers between 60 and 80?

P + Q = 2(P-Q). If Q = 10, what is the value of P?

Two ships are sailing in the sea on the two sides of a light house. The angle of elevation of the top of the light house as observed from the two ships are 30° and 45° respectively. If the light house is 100m high, the distance between the two ships is :(take √3=1.73)

The length of the diameter of the circle is 10 cm and length of the chord drawn in a circle is 6 cm. Find the distance (in cm) of chord from the center.

Find the curved surface area (in cm2) of a right circular cylinder of diameter 7 cm and height 6 cm.

The sum of 5/8 and 8/5 is

If the standard deviation of a population is 7, what would be the population variance?