Question

Find the solution set such that $xϵN$ and $4x+1<9$

• A. {1}
• B. {1, 2}
• C. {8, 9}
• D. {0, 1, 2}

Answer 1

The correct option is A

{1}

Given that 4x + 1 < 9

Subtracting 1 on both sides , we have

4x + 1 - 1 < 9 -1

4x < 8
Dividing by 4 on both sides
x < 2
Since x belongs to natural number only possible solution for x is {1}