Ahmadu Bello University Mathematics Post Utme Past Questions and Answers

Question 1 :

A fair coin is tossed ten times. What is the probability of getting at least two heads?

A. 513/1024
B. 615/1024
C. 968/1024
D. 1011/1024

Question 2 :

A man bought 220 mangoes at ₦5x. He sold each for 3x kobo and made a gain of ₦8. Find the value of x ____________

A. 2
B. 5
C. 10
D. 6

Question 3 :

Calculate the sum of infinity of \(1+\frac{1}{3}±\frac{1}{9}+\frac{1}{27}\)

A. 0 .33
B. 0 .67
C. 1.5
D. 2.5

Question 4 :

If "P + "C2, then n can be ____________

A. 1
b. 2
B. 3/2
C. 3

Question 5 :

Express tan 22 ½ in the surd form

A. √2-2
B. 1-√2
C. √2-1
D. +√2+ 1