Quantitative Aptitude - Arithmetic Ability Questions

The height of a light house is 20 mts above sea level. The angle of depression (from the top of the lighthouse) of a ship in the sea is 30 deg. What is the distance of the ship from the foot of the light house?

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

By what least number should 1200 be multiplied so that it becomes a perfect square?

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 1:2 and area of ΔABC is 45 sq cm, what is the area (in sq cm) of quadrilateral BDEC?

What is the diameter (in cm) of a sphere of surface area 6.16 sq cm?

The point of the intersection of three medians is known as the ____________.

What would be the compound interest of Rs. 25000 for 2 yrs. at 5% per annum?

If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 32448 and Rs 33745.92 respectively, what is the rate of interest?