Question

which number should replace both the asterisks in (*/21) * (*/189) = 1?

Answer 1

Answer:

Let (y/21) x (y/189) = 1

Then , y2 = 21 x 189 = 21 x 21 x 9

∴ y = (21 x 3) = 63 .

Step-by-step explanation:

your answer is 63