Jamb Mathematics 2021 Past Questions and Answers

Question 1:

• JAMB 2021

Find x if log\(_9\)x = 1.5

A. 27
B. 15
C. 3.5
D. 32

Question 2:

• JAMB 2021

List all integers satisfying the inequality in -2 < 2x-6 < 4

A. 2,3,4 and 5
B. 2,3
C. 2,5
D. 3,4

Question 3:

• JAMB 2021

X is due east point of y on a coast. Z is another point on the coast but 6.0km due south of Y. If the distance ZX is 12km, calculate the bearing of Z from X

A. 240°
B. 150°
C. 60°
D. 270°

Question 4:

• JAMB 2021

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 5:

• JAMB 2021

If (x + 2) and (x - 1) are factors of the expression \(Lx + 2kx^{2} + 24\), find the values of L and k.

A. L = -12, k = -6
B. L = -2 , k = 1
C. L = -2 , k = -1
D. L = 0, k = 1