Mathematics Past Questions and Answers

If a number is selected at random from each of the sets p = {1, 2, 3} and Q = {2, 3, 5}, find the probability that the sum of the numbers is prime

A \(\frac{5}{9}\)
B 1\(\frac{4}{9}\)
C \(\frac{1}{3}\)
D \(\frac{2}{9}\)

Question 3902:

If log 5.957 = 0.7750, find log \(3 \sqrt{0.0005957}\)

A 4.1986
B 2.9250
C 1.5917
D 1.2853

Question 3903:

The probability of an event P happening is \(\frac{1}{5}\) and that of event Q is \(\frac{1}{4}\). If the events are independent, what is the probability that neither of them happens?

A \(\frac{4}{5}\)
B \(\frac{3}{4}\)
C \(\frac{3}{5}\)
D \(\frac{1}{20}\)

Question 3904:

Each exterior angle of a polygon is 30^o. Calculate the sum of the interior angles

A 540^o
B 720^o
C 1080^o
D 1800^o

Question 3905:

Find the number of term in the Arithmetic Progression(A.P) 2, -9, -20,...-141.

A 11
B 12
C 13
D 14