Quantitative Aptitude - Arithmetic Ability Questions

Consider the following statements in respect of two integers p and q (both > 1) which are relatively prime:

1) Both p and q may be prime numbers.

2) Both p and q may be composite numbers

3) one of p and q may be prime and the other composite.

Which of the above statements are correct?

ABCD is a quadrilateral with AB = 9 cm, BC = 40 cm, CD = 28 cm, DA = 15 cm and angle ABC is a right –angel
What is the difference between perimeter of triangle ABC and perimeter of triangle ADC?

Mother can bake 20 cakes in 4 hours, Mother and Dadima together can bake 60 cakes in 10 hours. How many cakes Dadima can bake in 30 hours?

Of the 3 numbers whose average is 112, the first is 3/13 times the sum of other 2. The first number is _____.

The average monthly salary of 19 members of a group is Rs. 16000. If one more members whose monthly salary is Rs. 20000 has joined the group, then the average salary of the group is

If (1 / 3.197) = 0.3127, find the value of (1 / 0.0003197).

If secA = x, then the value of x is

If x + 2(3-5x) > -1 - 2x < 5 - x/3; then the value of x is