Mathematics 1980 JAMB Past Questions

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The ratio of the areas of similar triangles is necessarily equal to

A. the ratio of the corresponding sides
B. the ratio of the squares of corresponding sides
C. the ratio of the corresponding heights of the triangles
D. half the ratio of the corresponding heights of the triangles
E. the ratio of the corresponding bases to the heights of the triangles

View Answer & Discuss (3) JAMB 1980

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 JAMB 1980

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

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

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 (4) JAMB 1980

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Mathematics 1980 JAMB Past Questions

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