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Friday, 03 April 2026
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Mathematics Past Questions and Answers

Mathematics Questions

Question 656:
Simplify T = \(\frac{4R_2}{R_1^{-1} + R_2^{-1} + 4R_3^{-1}}\)
  • A \(\frac{4R_1 \times R_2 R_3}{R_2R_3 + R_1R_3 + 4R_1 R_2}\)
  • B \(\frac{R_1 R_2 R_3}{R_2R_3 + R_1R_2 + 4R_1 R_2}\)
  • C \(\frac{16R_1 R_2 R_3}{R_2R_3 + R_1R_2 + R_1 R_2}\)
  • D \(\frac{4R_1 R_2 R_3}{4R_2R_3 + R_1R_2 + 4R_1 R_2}\)
View Answer & Explanation
Question 657:
If b = a + cp and r = ab + \(\frac{1}{2}\)cp2, express b2 in terms of a, c, r.
  • A B2 = aV + 2cr
  • B B2 = ar + 2c2r
  • C B2 = a2 = \(\frac{1}{2}\) cr2
  • D B2 = \(\frac{1}{2}\)ar2 + c
  • E B2 = 2cr - a2
View Answer & Explanation
Question 658:
Multiply x2 + x + 1 by x2 - x + 1
  • A X4 - x + x2
  • B X4 - x2 + x2
  • C X4 + x2 + 1
  • D X4 + x2
View Answer & Explanation
Question 659:
A baking recipe calls for 2.5kg of sugar and 4.5kg of flour. With this recipe some cakes were baked using 24.5kg of a mixture of sugar and flour. How much sugar was used?
  • A 12.25kg
  • B 6.75kg
  • C 8.75kg
  • D 15.75kg
  • E 8.25kg
View Answer & Explanation
Question 660:
The difference between 4\(\frac{5}{7}\) and 2\(\frac{1}{4}\) greater by
  • A \(\frac{23}{28}\)
  • B \(\frac{24}{28}\)
  • C \(\frac{50}{56}\)
  • D \(\frac{27}{28}\)
  • E \(\frac{48}{56}\)
View Answer & Explanation