(17)5.5 x (17)? = 178	Options: A) 2.29 B) 2.75 C) 4.25 D) 4.5 E) None of these
Solution   let (17)5.5 * (17)x = 178. then, (17)5.5 + x = (17)8.   ∴ 5.5 + x = 8 ⇔ x = (8 - 5.5)= 
<gadget id="calculator">(8 - 5.5)</gadget>
<output>2.5</output>
2.5   Answer None of these
<result>E</result>
(17)5.5 x (17)? = 178