In a particular year, the exchange rate of naira (N) varies directly with the Dollars{$}….

Mathematics WAEC 2009

In a particular year, the exchange rate of naira (N) varies directly with the Dollars{$}. If N1122 is equivalent to $8, find the Naira equivalent of $36

  • N8976
  • N5049 checkmark
  • N140.25
  • N31.17

The correct answer is: B

Explanation

N1122 = $8; x = $36

x x $8 = N1122 x $36

\(\frac{N1122 \times $36}{$8}\) = x

x = N5049
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