Quantitative Aptitude - Arithmetic Ability Questions

The diagonal of a rhombus is 8m and 6m respectively. Find its area.

In the following question, select the odd letter/letters from the given alternatives.

If PA and PB are tangents to the circle with centre O such that ∠APB=50°, then the ∠OAB=

Working together P, Q and R reap a field in 6 days. If P can do it alone in 10 days and Q in 24 days, in how many days will R alone be able to reap the field?

Z’s present age is 55 years. If 11 years ago, C’s age was 1/11 of Z’s age, then after how many years C’s age will become 37 years?

What is the equation of the line passing through the point (1,3) and making an angle of -45° with the positive x-axis?

If 2cos2A - 1 = x, then the value of x is

Expand and simplify (x + 5)2 + (x - 3)2