Mathematics 2018 Jamb Past Questions and Answers

Question 71 :

• JAMB 2018

Simplify
\(\frac {25^{\frac{2}{3}} \div 25^{\frac{1}{6}}} {(\frac{1}{5})^{\frac{7}{6}} \div (\frac{1}{5})^{\frac{1}{6}}}\)

A. 25
B. \(\frac{1}{5}\)
C. 1
D. \(\frac{1}{25}\)

Question 72 :

• JAMB 2018

If the simple interest on a sum of money invested at 3% per annum for 2\(\frac{1}{2}\) years is N123, find the principal.

A. N676.50
B. N820
C. N1,640
D. N4,920

Question 73 :

• JAMB 2018

The table shown gives the marks scored by a group of student in a test. Use the table to answer the question given.

Mark	0	1	2	3	4	5
Frequency	1	2	7	5	4	3

What is the median mark?

A. 1
B. 2
C. 3
D. 4

Question 74 :

• JAMB 2018

The table shown gives the marks scored by a group of student in a test. Use the table to answer the question given.

Mark	0	1	2	3	4	5
Frequency	1	2	7	5	4	3

What is the probability of selecting a student from the group that scored 2 or 3

A. \(\frac{1}{11}\)
B. \(\frac{5}{22}\)
C. \(\frac{7}{22}\)
D. \(\frac{6}{11}\)

Question 75 :

• JAMB 2018

Two sisters, Taiwo and Kehinde, own a store. The ratio of Taiwo's share to Kehinde's is 11:9. Later Kehinde sells \(\frac{2}{3}\) of her share to Taiwo for N720.00. Find the value of the store

A. N1,080.00
B. N2,400.00
C. N3,000.00
D. N3,600.00