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Mathematics Past Questions and Answers

Mathematics Questions

Question 3891:
If x : y = 3 : 2 and y : z = 5 : 4, find the value of x in the ratio x : y : z
  • A 8
  • B 10
  • C 15
  • D 20
View Answer & Explanation
Question 3892:
Given that cos x = \(\frac{12}{13}\), evaluate \(\frac{1 - \tan x}{\tan x}\)
  • A \(\frac{5}{13}\)
  • B \(\frac{5}{7}\)
  • C \(\frac{7}{5}\)
  • D \(\frac{13}{5}\)
View Answer & Explanation
Question 3893:
approximate 0.0033780 to 3 significant figures
  • A 338
  • B 0.338
  • C 0.00338
  • D 0.003
View Answer & Explanation
Question 3894:
Simplify \(\frac{8^2 \times 4^n + 1}{2^{2n} \times 16}\)
  • A 16
  • B 8
  • C 4
  • D 1
View Answer & Explanation
Question 3895:
If \(\frac{2}{x - 3} - \frac{3}{x - 2}\) is equal to \(\frac{p}{(x - 3)(x - 2)}\), find p
  • A -x - 5
  • B -(x + 3)
  • C 5x - 13
  • D 5 - x
View Answer & Explanation