True(T)

When the number is in the form 7N + 1 ,

which can also be written as ,

7×N + 1

⇒ (multiple of 7) + 1

Therefore , when we divide 7N + 1 by 7,then we will get a remainder 1.

For example:22, 29

22 can be written as,

7×3 + 1

and

29 can be written as ,

7×4 + 1

Thus,22 and 29 will leave the remainder 1 when divided by 7.