Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6 ________
12
18
21
15