(17)4.5 x (17)? = 178  Choose the correct choice from the following:
A) 3.5 B) 2.75 C) 4.25 D) 4.5 E) None of these
Solution   let (17)4.5 * (17)x = 178. then, (17)4.5 + x = (17)8.   ∴ 4.5 + x = 8 ⇔ x = (8 - 4.5)= 
<gadget id="calculator">(8 - 4.5)</gadget>
<output>3.5</output>
3.5   3.5nswer 3.5
<result>A</result>
(17)4.5 x (17)? = 178