NUMBER AND NUMERATION - Jamb Mathematics Past Questions and Answers

Question 6:

• JAMB 1979

A trader goes to Ghana for y days with y cedis. For the first x days, he spends X cedis per day. The amount he has to spend per day for the rest of his stay is

A. \(\frac{y(y - x)}{y - x}\) cedis
B. \(\frac{Yy - Xx)}{y - x}\) cedis
C. \(\frac{Y - Xy)}{y - x}\) cedis
D. \(\frac{Y - X}{y - x}\) cedis
E. \(\frac{Y - Xx}{y - x}\) cedis

Question 7:

• JAMB 1978

A group of market women sell at least one of yam, plantain and maize. 12 of them sell maize, 10 sell yam and 14 sell plantain. 5 sell plantain and maize, 4 sell yam and maize, 2 sell yam and plantain only while 3 sell all the three items. How many women are in the group?

A. 25
B. 19
C. 18
D. 17

Question 8:

• JAMB 2019

In a class of 50 students, 40 students offered Physics and 30 offered Biology. How many offered both Physics and Biology?

A. 42
B. 20
C. 70
D. 54

Question 9:

• JAMB 2019

Rationalize \(\frac{\sqrt{2} + \sqrt{3}}{\sqrt{2} - \sqrt{3}}\)

A. \(-5 - 2\sqrt{6}\)
B. \(-5 + 3\sqrt{2}\)
C. \(5 - 2\sqrt{3}\)
D. \(5 + 2\sqrt{6}\)

Question 10:

• JAMB 2019

\(\frac{\frac{2}{3} \div \frac{4}{5}}{\frac{1}{4} + \frac{3}{5} - \frac{1}{3}}\)

A. \(\frac{31}{50}\)
B. \(\frac{20}{31}\)
C. \(\frac{31}{20}\)
D. \(\frac{50}{31}\)