Quantitative Aptitude - Arithmetic Ability Questions

One side of a rectangular field is 15m and one of its diagonal is 17m. Find the area of field?

Consider the following statements:

1) The number of circles that can be drawn through three non-collinear points is infinity.

2) Angle formed in minor segment of a circle is acute.

Which of the above statements is/are correct?

Select the odd figure out of the following figure series?

Find the odd one out.

If a * b = 2a - 3b + ab, then 3 * 5 + 5 * 3  is equal to : 

In the following question, select the odd word from the given alternatives.

Calculate the area (in sq.cm) of a circle whose diameter is 14 cm.

A contractor undertakes to do a piece of work in 40 days. He engages 100 men at the begining and 100 more  after 35 days and completes the work in stipulated time. If he had not  engaged  the additional men, how many days  behind schedule would it be finished?