(25)5 x (5)5 ÷ (125)5 = 5?
Solution
Correct Answer: Option B
Let (25)7.5 x (5)2.5 ÷ (125)1.5 = 5x.
Then, ((52)7.5 x (5)2.5) / ((53)1.5) = 5x
=> (5(2 x 7.5) x 52.5/5(3 x 1.5))= 5x
=> (515 x 52.5)/ (54.5)= 5x
=> 5x = 5(15 + 2.5 - 4.5)
=> 5x = 513
Therefore, x = 13.
Practice More Questions on Our App!
Download our app for free and access thousands of MCQ questions with detailed solutions