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Mathematics Past Questions and Answers

Jamb 2009 Mathematics Questions

Question 6:
If log102 = 0.3010 and log107 = 0.8451, evaluate log10280
  • A 3.4471
  • B 2.4471
  • C 1.4471
  • D 1.4071
View Answer & Explanation
Question 7:
Simplify \(\frac{5+\sqrt{7}}{3+\sqrt{7}}\)
  • A 17-√7
  • B 4-√7
  • C 15+√7
  • D 7-√7
View Answer & Explanation
Question 8:
If x = {n2+1:n is a positive integer and 1 \(\leq\) n \(\leq\) 5},
Y = {5n:n is a positive integer and 1 \(\leq\) n \(\leq\) 5}, find x \(\cap\) y.
  • A {5,10}
  • B {5, 10, 15}
  • C {2, 5, 10}
  • D {5, 10, 15, 20}
View Answer & Explanation
Question 9:
I.S∩T∩W=S II. S ∪ T ∪ W = W
III. T ∩ W = S
If S⊂‚T⊂‚W, which of the above statements are true?
  • A I and II
  • B I and III
  • C II and III
  • D I, II and III
View Answer & Explanation
Question 10:
If \(p=\sqrt{\frac{rs^3}{t}}\), express r in terms of p, s and t
  • A \(\frac{p^2 t}{s^3}\)
  • B \(\frac{p^3 t}{s^3}\)
  • C \(\frac{p^3 t}{s^2}\)
  • D \(\frac{p^ t}{s^3}\)
View Answer & Explanation