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make w the subject of the relation \(\frac{a + bc}{wd + f}\) = g

Mathematics
WAEC 2007
make w the subject of the relation \(\frac{a + bc}{wd + f}\) = g
  • A. \(\frac{a + bc - fg}{dg}\)
  • B. \(\frac{a - bc + fg}{dg}\)
  • C. \(\frac{a + bc - f}{dg}\)
  • D. \(\frac{a + bc - dg}{dg}\)
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Correct Answer: Option A
Explanation
\(\frac{a + bc}{wd + f}\) = g(cross multiply)

a = bc + wdg + fg

wdg = a + bc - fg

w = \(\frac{a + bc - fg}{dg}\)
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts