Find the missing number in the series: 4, 7, 25, 10, __________, 20, 16, 19.

Find the missing number in the series: 4, 7, 25, 10, __________, 20, 1

1.	Find the missing number in the series: 4, 7, 25, 10, __________, 20, 16, 19.
A.	13
B.	15
C.	20
D.	28
Answer» B. 15