Simplify 25\(\frac{1}{2}\) × 8\(\frac{-2}{3}\)
-
1\(\frac{1}{4}\)
- 2\(\frac{1}{4}\)
- 6
- 10
The correct answer is: A
Explanation
Using law of indices
25\(\frac{1}{2}\) × 8\(\frac{-2}{3}\)
= √25 x (\(\sqrt[3]{8}\)) -2
= 5 x 2-2
= 5 x \(\frac{1}{2^2}\) =
\(\frac{5}{4}\) = \(\frac{11}{4}\)
Answer is A
There is an explanation video available .