Jamb Mathematics Past Questions and Answers

Question 2041:

• JAMB 2010

If three unbiased coins are tossed, find the probability that they are all heads

A. \(\frac{1}{2}\)
B. \(\frac{1}{3}\)
C. \(\frac{1}{9}\)
D. \(\frac{1}{8}\)

Question 2042:

• JAMB 2010

Find the standard deviation of 2, 3, 5 and 6

A. √6
B. √10
C. √\(\frac{2}{5}\)
D. √\(\frac{5}{2}\)

Question 2043:

• JAMB 2010

W is directly proportional to U. If W = 5 when U = 3, find U when W = \(\frac{2}{7}\)

A. \(\frac{6}{35}\)
B. \(\frac{10}{21}\)
C. \(\frac{21}{10}\)
D. \(\frac{35}{6}\)

Question 2044:

• JAMB 2011

If 2q3₅ = 77₈, find q

A. 2
B. 1
C. 4
D. O

Question 2045:

• JAMB 2011

If 2q3₅ = 77₈, find q

A. 2
B. 1
C. 4
D. O