Mathematics 2006 Jamb Past Questions and Answers

Question 6 :

• JAMB 2006

Find the variance of 2x, 2x-1 and 2x+1

A. 2/3
B. 2
C. √(2/3)
D. 1

Question 7 :

• JAMB 2006

The table above shows the distribution of recharge cards of four major GSM operators. What is the probability that a recharge card selected at random will be GTN or Qtel?

A. 3/20
B. 1/4
C. 2/5
D. 3/4

Question 8 :

• JAMB 2006

The pie chart above shows the expenditure of a family whose income is N30,000. If the expenditure on food is twice that on housing and that on school fees is twice that on transport, how much does the family spend on food?

A. N 28 000
B. N 25 500
C. N15 000
D. N 12 500

Question 9 :

• JAMB 2006

For what of n is ⁿ⁺¹C₃ = 4(ⁿC₃)?

A. 6
B. 5
C. 4
D. 3

Question 10 :

• JAMB 2006

The gradient of a curve is 2x + 7 and the curve passes through point (2, 0). find the equation of the curve.

A. Y = x² + 7x + 9
B. Y = x² + 7x - 18
C. Y = x² + 7x + 18
D. Y = x² + 14x + 11