NUMBER AND NUMERATION - Jamb Mathematics Past Questions and Answers

Question 51:

• JAMB 2017

Evaluate 1 − (\(\frac{1}{5}\) x 1\(\frac{2}{3}\)) + (5 + 1\(\frac{2}{3}\))

A. 4
B. 3
C. \(\frac{22}{3}\)
D. 3 \(\frac{2}{3}\)

Question 52:

• JAMB 2017

If \(\frac{2 \sqrt{3} - \sqrt{2}}{\sqrt{3} + 2 \sqrt{2}} = m + n\sqrt{6}\),

find the values of m and n respectively

A. 1, - 2
B. - 2, n = 1
C. \(\frac{-2}{5}\), 1
D. \(\frac{2}{3}\)

Question 53:

• JAMB 2017

Simplify (3√64a³)\(^{−1}\)

A. 4a
B. \(\frac{1}{8a}\)
C. 8a
D. \(\frac{1}{4a}\)

Question 54:

• JAMB 2017

Evaluate \(\frac{0.00000231}{0.007}\) and leave the answer in standard form

A. 3.3 x 10^-4
B. 3.3 x 10^-3
C. 3.3 x 10-⁵
D. 3.3 x 10^-8

Question 55:

• JAMB 2017

If a rod 10cm in length was measured as 10.5cm, calculate the percentage error

A. 5%
B. 10%
C. 8%
D. 7%