NUMBER AND NUMERATION - Jamb Mathematics Past Questions and Answers

Question 446:

• JAMB 2004

Simplify \(\frac{1}{\sqrt{3}+2}\) in the form \(a+b\sqrt{3}\)

A. 2 -√3
B. -2 - √3
C. 2 + √3
D. -2 + √3

Question 447:

• JAMB 2004

A farmer planted 5000 grains of maize and harvested 5000 cobs, each bearing 500 grains. What is the ratio of the number of grains sowed to the number harvested?

A. 1 : 250 000
B. 1 : 25 000
C. 1 : 500
D. 1 : 5 000

Question 448:

• JAMB 2005

If 321₄ is divided by 23₄ and leaves a remainder r, what is the value of r?

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

Question 449:

• JAMB 2005

Simplify 3¹/₂ - (2¹/₃ * 1¹/₄) + ³/₅

A. 2¹¹/₆₀
B. 2¹/₆₀
C. 1¹¹/₆₀
D. 1¹/₆₀

Question 450:

• JAMB 2005

If the interest on N150.00 for 2¹/₂ years is N4.50, find the interest on N250.00 for 6 months at the same rate

A. N1.50
B. N7.50
C. N15.00
D. N18.00