WAEC - Mathematics (2009 - No. 2)
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
N140.25
N31.17
解释
N1122 = $8; x = $36
x x $8 = N1122 x $36
\(\frac{N1122 \times $36}{$8}\) = x
x = N5049
x x $8 = N1122 x $36
\(\frac{N1122 \times $36}{$8}\) = x
x = N5049