Question

If $(28{)}^2$ is added to the square of a number, the answer so obtained is 1808. What is the number?

• A. 34
• B. 26
• C. 36
• D. 32

Answer 1

The correct option is D 32

${\left(28\right)}^2+x^2=1808$

$\Rightarrow x^2=1808-{\left(28\right)}^2$
$\Rightarrow x^2=1808-784=1024$
$\Rightarrow x=\sqrt{1024}=32$