NUMBER AND NUMERATION - Jamb Mathematics Past Questions and Answers

Question 226:

• JAMB 1983

Simplify log¹⁰ a^{\(\frac{1}{3}\)} + \(\frac{1}{4}\)log₁₀ a - \(\frac{1}{12}\)log₁₀a⁷

A. 1
B. \(\frac{7}{6}\)log₁₀ a
C. Zero
D. 10

Question 227:

• JAMB 1983

Correct each of the numbers 59.81798 and 0.0746829 to three significant figures and multiply them, giving your answer to three significant figures

A. 4.46
B. 4.48
C. 4.47
D. 4.49
E. 4.50

Question 228:

• JAMB 1983

If a rod of length 250cm is measured as 255cm long in error, what is the percentage error in the measurement?

A. 55
B. 10
C. 5
D. 4
E. 2

Question 229:

• JAMB 1983

If \((\frac{2}{3})^{m} (\frac{3}{4})^{n} = \frac{256}{729}\), find the values of m and n.

A. M = 4, n = 2
B. M = -4, n = -2
C. M = -4, n =2
D. M = 4, n = -2
E. M = -2, n = 4

Question 230:

• JAMB 1983

Without using tables find the numerical value of log₇49 + log7_{(\(\frac{1}{7}\))}

A. 1
B. 2
C. 3
D. 7
E. 9