Two-third of two-fifth of three-fourth of a number is 36. What is the square root of four-fifth of that number?
Pick: A) 9 B) 12 C) 14 D) 16 E) 18
Explanation:   We have, 2/3 * 2/5 * 3/4 * X = 36   X = 180   Now, 4/5 * X ===&gt; 4/5 * 180= 
<gadget id="calculator">4/5 * 180</gadget>
<output>144</output>
144   √144= 12   ANSWER: 12
<result>B</result>
Two-third of two-fifth of three-fourth of a number is 36. What is the square root of four-fifth of that number?