NUMBER AND NUMERATION - Jamb Mathematics Past Questions and Answers

Question 461:

• JAMB 2006

In a small village of 500 people, 350 speak the local language while 200 speak pidgin English. What percentage of the population speak both.

A. 30%
B. 10%
C. 50%
D. 14%

Question 462:

• JAMB 2006

Find the tax on an income of N20,000 if no tax is paid on the first N10,000 and tax is paid at N50 in N1000 on the next N5000 and at N55 in N1000 on the remainder

A. N500
B. N552
C. N255
D. N525

Question 463:

• JAMB 2006

Evaluate \(\frac{2}{6-5\sqrt{3}}\)

A. \(-\left(\frac{12}{39}-\frac{10\sqrt{3}}{39}\right)\)
B. \(\frac{12}{39}-\frac{10\sqrt{3}}{39}\)
C. \(-\left(\frac{12}{39}+\frac{10\sqrt{3}}{39}\right)\)
D. \(\frac{12}{39}+\frac{10\sqrt{3}}{39}\)

Question 464:

• JAMB 2006

Compute 110011₂ + 11111₂

A. 1001010₂
B. 1010010₂
C. 1000110₂
D. 1000100₂

Question 465:

• JAMB 2006

Simplify \((25)^{\frac{-1}{2}} \times (27)^{\frac{1}{3}} + (121)^{\frac{-1}{2}} \times (625)^{\frac{-1}{4}}\)

A. ³⁴/₅₅
B. ⁹/₁₁
C. ¹⁴/₅
D. ³/₂₇₅