Quantitative Aptitude - Arithmetic Ability Questions

If the loss of percent on article is 15%. Then the ratio of the cost price and sell price will be

The age of Dr. Pandey is four times the age of his son. After 10 years , the age of Dr. Pandey will be twice the age of his son . The present age of Dr. Pandey's son is

What is the value of √[(1 - sinA)/(1 + sinA)]?

If (6x ­- 5) = (4x + 7), then the numerical value of (x + 1)3  is

What is the slope of the line parallel to the line passing through the points (-2, -1) and (4, -3)?

If sec2θ+tan2θ=3, then sec4θ-tan4θ =

What is the value of √[(1 ­- cosA)/(1 + cosA)]?

Select the odd number from the given alternatives.