Quantitative Aptitude - Arithmetic Ability Questions

Find the value of x if 0.08x + 0.04y = 10 and 0.2(x-1) + 0.4y = 24.8

If 1/4th of the wall is painted blue, 1/2 is painted yellow and remaining 3 m is painted white, what is the length of the wall?

CAlculate : 72-6-45÷5-72-2×2÷2+2

If "basis points" are defined so that 1 percent is equal to 100 basis points, then by how many basis points is 82.5 percent greater than 62.5 percent?

If (secA - tanA)2 = x, then the value of x is

If x4+1x4=119,then the value of x-1x is

Slit 69 into three parts such that they are in A.P. and the product of their smaller parts is 483.

If PA and PB are two tangents to a circle with centre O such that ∡APB = 80°. Then ∡AOP =