The 12 digits on the face of a clock are to be represented employing contributions of only the number 9 as either 9 or \(\sqrt 9\). The other prescribed conditions are (i) the least number of uses alone are permitted; and (ii) when alternates are possible, use of 9 will be prerferred over use of \(\sqrt 9\), which should be used minimally. How many times would \(\sqrt 9\) have to be used?

The 12 digits on the face of a clock are to be represented employing c

1.	The 12 digits on the face of a clock are to be represented employing contributions of only the number 9 as either 9 or \(\sqrt 9\). The other prescribed conditions are (i) the least number of uses alone are permitted; and (ii) when alternates are possible, use of 9 will be prerferred over use of \(\sqrt 9\), which should be used minimally. How many times would \(\sqrt 9\) have to be used?
A.	6
B.	5
C.	4
D.	3
Answer» B. 5