Question

A person's salary increases from 7,200 to 8,100. What is the percentage increase in his salary?
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Answer 1

salary increase=8100

salary before increase=7200

rupees increased=900

so  increase %=900/7200 of 100

90000/7200

                         

= 12.5% answer

Answer 2

$\bf{\red{\underbrace{\underline{QUESTION}}}}$

A person's salary increases from 7,200 to 8,100. What is the percentage increase in his salary?

$\bf{\blue{\underbrace{\underline{ANSWER}}}}$

$\implies \bf{Original\:salary}\:=\:₹7200 \\ \\ \implies \bf{After\: increasing}\:=\:₹8100$

$\therefore percentage\:of\: increased\: salary$

$\implies \frac{8100\:-\:7200}{7200} \times 100 \% \\ \\ \implies \frac{900}{7200} \times 100 \% \\ \\ \implies \frac{9}{72} \times 100 \% \\ \\ \implies \frac{900}{72} \\ \\ \implies 12.5 \%$

$\boxed{\boxed{@\:Lily}}$