A number X equals 80% of the average of 5, 7, 14 and a number Y. If the average of X and Y is 26, the value of Y is?	Choose the correct choice:
A) 13
B) 26
C) 39
D) 36
E) None of these
Average of 5, 7, 14 and Y = ( 5 + 7 + 14 + Y )/ 4   Therefore, X = 80% of ( 5 + 7 + 14 + y )/ 4   = (80/100) x (26 + Y)/4   =&gt; X = (26 + Y)/5   5X - Y = 26----- (i)   Also, (X + Y)/2 = 26 ----- (ii)   From (i)and (ii)   X = 13   Y = 39.   ANSWER:39
<result>C</result>
A number X equals 80% of the average of 5, 7, 14 and a number Y. If the average of X and Y is 26, the value of Y is?