Approximations - Jamb Mathematics Past Questions and Answers

Question 11:

• JAMB 1986

Simplify \(\frac{0.0324 \times 0.00064}{0.48 \times 0.012}\)

A. 3.6 x 10²
B. 3.6 x 10^-2
C. 3.6 x 10^-3
D. 3.6 x 10^-4

Question 12:

• JAMB 1987

Evaluate without using tables (0.008) -\(\frac{1}{3}\) x (0.16) - \(\frac{3}{2}\)

A. \(\frac{625}{8}\)
B. \(\frac{8}{625}\)
C. \(\frac{1}{8}\)
D. 8

Question 13:

• JAMB 1989

Which of the following is in descending order?

A. \(\frac{9}{10} \frac{4}{5} \frac{3}{4} \frac{17}{20}\)
B. \(\frac{4}{5} \frac{9}{10} \frac{3}{4} \frac{17}{20}\)
C. \(\frac{9}{10} \frac{17}{20} \frac{4}{5} \frac{3}{4}\)
D. \(\frac{4}{5} \frac{9}{10} \frac{17}{20} \frac{3}{4}\)

Question 14:

• JAMB 1989

Which of the following is in descending order?

A. \(\frac{9}{10} \frac{4}{5} \frac{3}{4} \frac{17}{20}\)
B. \(\frac{4}{5} \frac{9}{10} \frac{3}{4} \frac{17}{20}\)
C. \(\frac{9}{10} \frac{17}{20} \frac{4}{5} \frac{3}{4}\)
D. \(\frac{4}{5} \frac{9}{10} \frac{17}{20} \frac{3}{4}\)

Question 15:

• JAMB 2002

Simplify 52.4 - 5.7 - 3.45 - 1.75

A. 41.4
B. 41.5
C. 42.1
D. 42.2