Question

$\sqrt{2}\times\sqrt{200}\times_3\sqrt{9}\times_3\sqrt{81}$

• A. 540
• B. 180
• C. 160
• D. 150

Answer 1

Answer:

B. 180

$\sqrt{2}\times\sqrt{200}\times_3\sqrt{9}\times_3\sqrt{81}$

$=\sqrt{2\times200}\times_3\sqrt{9\times81}$

$=\sqrt{400}\times_3\sqrt{729}$

$=20\times9$

$=180$