Jamb Mathematics 1984 Past Questions and Answers

Question 6:

• JAMB 1984

A man invested a total of N50000 in two companies. If these companies pay dividends of 6% and 8% respectively, how much did he invest at 8% if the total yield is N3700?

A. N15 000
B. N29 600
C. N27 800
D. N21 400
E. N35 000

Question 7:

• JAMB 1984

Thirty boys and x girls sat for a rest. The mean of the boys scores and that of the girls were respectively 6 and 8. Find x if the total scores was 468

A. 38
B. 24
C. 36
D. 22
E. 41

Question 8:

• JAMB 1984

The cost of production of an article is made up as follows: Labour N70, Power N15, Materials N30, Miscellaneous N5. Find the angle of the sector representing Labour in a pie chart

A. 210^o
B. 105^o
C. 105^o
D. 175^o
E. 90^o

Question 9:

• JAMB 1984

Bola choose at random a number between 1 and 300. What is the probability that the number is divisible by 4?

A. \(\frac{1}{4}\)
B. \(\frac{4}{4}\)
C. \(\frac{6}{4}\)
D. \(\frac{7}{4}\)
E. \(\frac{37}{149}\)

Question 10:

• JAMB 1984

Find, without using logarithm tables, the value of \(\frac{log_3 27 - log_{\frac{1}{4}} 64}{log_3 \frac{1}{81}}\)

A. \(\frac{-3}{9}\)
B. \(\frac{-3}{2}\)
C. \(\frac{6}{11}\)
D. \(\frac{43}{78}\)