Question

To open the treasure box, they have to rotate the needle of the compass in a particular direction. Solve the expression to set the needle in the correct direction to open the box.
$\frac{11.25\times {10}^6}{6.25\times {10}^4}$

• A. $0^{\circ }$
• B. ${90}^{\circ }$
• C. ${180}^{\circ }$
• D. ${270}^{\circ }$

Answer 1

The correct option is C ${180}^{\circ }$

Given expression is $\frac{11.25\times {10}^6}{6.25\times {10}^4}$
$=\frac{11.25}{6.25}\times \frac{{10}^6}{{10}^4}$
$=\frac{11.25}{6.25}\times {10}^{6-4}$ [$\because \frac{{10}^a}{{10}^b}={10}^{a-b}$]
$=1.8\times {10}^2$
$=1.8\times 100$
$={180}^{\circ }$