#### Answer

13

#### Work Step by Step

1,4,1,7,1,10,1,_
Above series is the pattern of (1,4), so in the next pattern 1 remains same but 3 is added to 4
So 10 + 3 = 13
therefore the next number is 13

Published by
Pearson

ISBN 10:
0321867327

ISBN 13:
978-0-32186-732-2

13

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