Question

If Nancy, who is not yet $21$ years old, is two years older than Lily, then Lily's age will be

• A. $\le 19$ years
• B. $<19$ years
• C. $>19$ years

Answer 1

The correct option is B $<19$ years

Let Nancy's age $=N$ years
& Lily's age $=L$ years.
Given: Nancy is two years older than Lily and not yet 21 years old.
$\Rightarrow N=L+2<21$
Subtract $2$ from both sides of the inequality
$\Rightarrow L+2-2<21-2$
$\Rightarrow L<19$