Quantitative Aptitude - Arithmetic Ability Questions

The sum of all prime numbers between 18 and 32 is:

If cosA + cos2A = 1 then the value of sin2A + sin4A is

ABCD is a parallelogram in which AB = 7 cm, BC = 9 cm and AC = 8 cm. What is the length (in cm) of other diagonal?

If x3-2x=3x, then the value of x2+1x2 will be

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

Δ LMN is right angled at M. If m∠N = 60 deg., then Tan L =______.

If a+b=5 then the value of a-37+b-27 is

A and B have their annual average income Rs. 80,000.
B and C have their annual average income Rs. 75,000.
C and A have their annual average income Rs. 78,000.

The annual income of A is ?