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Mathematics 1978 JAMB Past Questions

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21

A man runs a distance of 9km at a constant speed for the first 4 km and then 2 km\h faster for the rest of the distance. The whole run takes him one hour. His average speed for the first 4 km is

  • A. 6 km/h
  • B. 8 km/h
  • C. 9 km\h
  • D. 11 km\h
  • E. 13 km\h
View Answer & Discuss (1) JAMB 1978
22

A pyramid is constructed on a cuboid. The figure has

  • A. twelve faces
  • B. thirteen vertices
  • C. fourteen edges
  • D. fifteen edges
  • E. sixteen edges
View Answer & Discuss JAMB 1978
23
In a geometric progression, the first term is 153 and the sixth term is \(\frac{17}{27}\). The sum of the first four terms is
  • A. \(\frac{860}{3}\)
  • B. \(\frac{680}{3}\)
  • C. \(\frac{608}{3}\)
  • D. \(\frac{680}{3}\)
View Answer & Discuss (1) JAMB 1978
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24
An arithmetic progression has first term 11 and fourth term 32. The sum of the first nine terms is
  • A. 351
  • B. 531
  • C. 135
  • D. 153
View Answer & Discuss (1) JAMB 1978
25

A triangle has angles 30o, 15o and 135o. The side opposite to the angle 30o is length 6cm. The side opposite to the angle 135o is equal to

  • A. 12cm
  • B. 6cm
  • C. 6\(\sqrt{2}\)cm
  • D. 12\(\sqrt{2}\)cm
View Answer & Discuss (3) JAMB 1978
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