## 0 6 12 _ 24 30 _ _ 48 _

1 9 _ 24 36 _ _ 56 _ _

Click here to See Answers

For first(diff of 6): 0 6 12

For second: put your answers in comments

**18**24 30**36****42**48**54**For second: put your answers in comments

1 9 _ 24 36 _ _ 56 _ _

Click here to See AnswersHide

For first(diff of 6): 0 6 12 **18** 24 30 **36** **42** 48 **54**

For second: put your answers in comments

For second: put your answers in comments

There are 7 people numbered as 1 to 7.

The number denotes their height.

Arrange them in a line in such a manner so that the line appears in alternative of their heights, I.e. one short then long, again short then long.

The condition is that, if one by one member(remove 1, then 2, then 3) from the line is omitted, the order of their height remains alternative.