Question

Which of the following is not a rational number between -2 and 1?

• A. 30/40
• B. 15/10
• C. -15/10
• D. -30/20

Answer 1

The correct option is B 15/10

$\frac{30}{40}$ = 0.75
$\frac{15}{10}$ = 1.5
-$\frac{15}{10}$ = -1.5
-$\frac{30}{20}$ = -1.5

Hence, $\frac{15}{10}$ does not lie between -2 and 1.