Mathematics Past Questions

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2256

P and Q are fixed points, and X is a variable point which moves so that angle PXQ = 45º. What is the locus of x?

A. A pair of straight lines parallel to PQ
B. The perpendicular bisector of PQ
C. An arc of a circle passing through P and Q
D. A circle with diameter PQ
E. The bisector of angle PXQ

View Answer & Discuss (3) JAMB 1980

2257

A man and his wife went to buy an article costing N400. The woman had 10% of the cost and the man 40% of the remainder. How much did they have altogether?

A. N216
B. N200
C. N184
D. N144
E. N100

View Answer & Discuss (3) JAMB 1980

2258

Simplify \(\frac{log_{10}8}{log_{10}4}\)

A. log10²
B. log10⁴
C. \(\frac{3}{2}\)
D. 2
E. None of the above

View Answer & Discuss (1) JAMB 1980

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2259

Make c the subject of formula v = 1 - \(\frac{a}{5}\)(b + \(\frac{3c}{7}\))

A. [\(\frac{7}{3}\) + \(\frac{5}{a}\)(v - 1)] + b
B. [\(\frac{7b}{3}\) + \(\frac{5}{a}\)(v - 1)]
C. \(\frac{7}{3}\)[b + \(\frac{5}{a}\)(v - 1)]
D. \(\frac{7}{3}\)[b + \(\frac{5v - 1}{a}\)]

View Answer & Discuss (8) JAMB 1980

2260

What factor is common to all the expressions x² - x, 2x² + x - 1 and x² - 1?

A. x
B. x + 1
C. x - 1
D. No common factor
E. (2x - 1)

View Answer & Discuss (1) JAMB 1980

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