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Mathematics Past Questions

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36

Evaluate \(\frac{(2.813 \times 10^{-3} \times 1.063)}{(5.637 \times 10^{-2})}\) reducing each number to two significant figures and leaving your answer in two significant figures.

  • A. 0.056
  • B. 0.055
  • C. 0.054
  • D. 0.54
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37
A man wishes to keep his money in a savings deposit at 25% compound interest so that after three years he can buy a car for N150,000. How much does he need to deposit?
  • A. N112,000.50
  • B. N96,000.00
  • C. N85,714.28
  • D. N76,800.00
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38
If 31410 - 2567 = 340x, find x.
  • A. 7
  • B. 8
  • C. 9
  • D. 10
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39

Simplify \(\frac{3(2^{n+1}) - 4(2^{n-1})}{2^{n+1} - 2^n}\)

  • A. 2n+1
  • B. 2n-1
  • C. 4
  • D. 1/4
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40

If \(P344_{6} - 23P2_{6} = 2PP2_{6}\), find the value of the digit P.

  • A. 2
  • B. 3
  • C. 4
  • D. 5
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