16/12 = (x-1)/6
x-1 = 4/3 . 6
x = 24/3 + 1 = 9
32/24 = (y+1)/21
y+1 = 4/3 . 21
y = 84/3 - 1 = 25
Answer:
<em>(C). {3} </em>
Step-by-step explanation:
=
+
( x ≠ - 1 )
-
+
= 0
-
= 0
= 0 ⇒ <em>x = 3</em>
Advanced science students are not representative of all of the students in the school