NUMBER AND NUMERATION - Jamb Mathematics Past Questions and Answers

Question 601:

• JAMB 2021

Simplify 2log \(\frac{2}{5}\) - log\(\frac{72}{125}\) + log 9

A. 1 - 4 log3
B. -1 + 2 log 3
C. -1 + 5 log2
D. 1 - 2log 2

Question 602:

• JAMB 2021

At what rate would a sum of N100.00 deposited for 5 years raise an interest of N7.50?

A. \(\frac{1}{2}\)%
B. 2\(\frac{1}{2}\)%
C. 1.5%
D. 25%

Question 603:

• JAMB 2021

Three children shared a basket of mangoes in such a way that the first child took \(\frac{1}{4}\) of the mangoes and the second \(\frac{3}{4}\) of the remainder. What fraction of the mangoes did the third child take?

A. \(\frac{3}{16}\)
B. \(\frac{7}{16}\)
C. \(\frac{9}{16}\)
D. \(\frac{13}{16}\)

Question 604:

• JAMB 2021

Simplify and express in standard form \(\frac{0.00275 \times 0.00640}{0.025 \times 0.08}\)

A. 8.8 x 10^-1
B. 8.8 x 10^-2
C. 8.8 x 10^-3
D. 8.8 x 10³

Question 605:

• JAMB 2021

Simplify \(\sqrt{27}\) + \(\frac{3}{\sqrt{3}}\)

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