Akanksha scored 280 marks in her first term examination and 350 marks

1.	Akanksha scored 280 marks in her first term examination and 350 marks in the second term what is the percentage increase in the marks
Answer» Solution:- We know that, Percentage increase ↓ ↓ $\boxed{ \boxed{ \sf{ \bigg( \dfrac{New \: Value - Initial \: Value}{Initial \: Value} \times 100 \bigg)\%}}}$ By putting the VALUES, $\longrightarrow \: \bigg( \dfrac{350 - 280}{280} \times 100 \bigg)\%$ $\longrightarrow \: \bigg( \dfrac{70}{280} \times 100 \bigg)\%$ $\longrightarrow \: \bigg( \dfrac{70}{28} \times 10 \bigg)\%$ $\longrightarrow \: ( 2.5 \times 10\%)$ $\longrightarrow \: 25\%$ Therefore, Percentage increase is 25% Required ANSWER:- The Percentage increase of Akanksha is 25% Remember:- ${ \sf{ \bigg( \dfrac{Initial \: Value - New \: Value}{Initial \: Value} \times 100 \bigg)\%}}$ ${ \sf{ \bigg( \dfrac{One \: quantity}{Other \: quantity} \times 100 \bigg)\%}}$ The WORD per cent means 'per hundred' or 'out of hundred'