Question

If ${}^{\prime }{+}^{\prime }$ is coded as ${}^{\prime }{\pi }^{\prime }{,}^{\prime }{\times }^{\prime }$ is coded as ${}^{\prime }{\ne }^{\prime }{,}^{\prime }{÷}^{\prime }$ is coded as ${}^{\prime }$'$and$'-'$iscodedas$'\triangle'$,thenwhatisthevalueof:$72\ \pi\ 27\ \triangle 99$.

• A. $65$
• B. $52$
• C. $47$
• D. $0$

Answer 1

The correct option is D $0$

Given, $72\pi 27△99$
After interchanging the signs,
$72+27-99=99-99=0$.