Quantitative Aptitude - Arithmetic Ability Questions

In triangle ABC, BAC = 90 deg and AD is perpendicular to BC. If AD = 6cm and BD = 4cm, then the length of BC is

Of the 3 numbers whose average is 64, the first number is 1/3 times the sum of other 2. The first number is

The 3rd and 6th term of an arithmetic progression are 13 and -5 respectively. What is the 11th term?

If (1 + cosA)/(1 - cosA) = x, then x is

A box contain equal number of 1 rupee, 2 rupee and 5 rupee coins. If the total amount is Rs 184, then how many coins of each type are there?

Find the value of 1006×994?

Simplify 50 + 18 - 8

A cylindrical vessel of radius 8 cm is partially filled with water. By how much will the water level rise if a sphere of radius 7 cm is completely immersed in this water?