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
\(\frac{1}{25}\)
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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
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