What is the product of frac 27 5 1 3 -3 and fra... - JAMB Mathematics 1991 Question
What is the product of \(\frac{27}{5^1}\)(3)-3 and \(\frac{(1)^{-1}}{5}\)?
A
5
B
3
C
1
D
\(\frac{1}{25}\)
correct option: c
\(\frac{27}{5^1}\)(3)-3 x \(\frac{(1)^{-1}}{5}\) = \(\frac{27}{5}\) x \(\frac{1}{3^3}\) x \(\frac{1}{\frac{1}{5}}\)
= \(\frac{27}{5}\) x \(\frac{1}{27}\) x \(\frac{5}{1}\)
= 1
= \(\frac{27}{5}\) x \(\frac{1}{27}\) x \(\frac{5}{1}\)
= 1
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