NUMBER AND NUMERATION - Jamb Mathematics Past Questions and Answers

Question 396:

• JAMB 1999

If log 10 to base 8 = X, evaluate log 5 to base 8 in terms of X.

A. \(\frac{1}{2}\)X
B. X-\(\frac{1}{4}\)
C. X-\(\frac{1}{3}\)
D. X-\(\frac{1}{2}\)

Question 397:

• JAMB 1999

Find the value of X if \(\frac{\sqrt{2}}{x+\sqrt{2}}=\frac{1}{x-\sqrt{2}}\)

A. 3√2+4
B. 3√2-4
C. 3-2√2
D. 4+2√2

Question 398:

• JAMB 1999

A trader bought 100 oranges at 5 for N1.20, 20 oranges got spoilt and the remaining were sold at 4 for N1.50. Find the percentage gain or loss.

A. 30% gain
B. 25% gain
C. 30% loss
D. 25% loss

Question 399:

• JAMB 1999

What is the answer when 24346 is divided by 426?

A. 23₆
B. 35₆
C. 52₆
D. 55₆

Question 400:

• JAMB 1999

If 2\(_9\) x (Y3)\(_9\) = 3\(_5\) x (Y3)\(_5\), find the value of Y.

A. 4
B. 3
C. 2
D. 1