Question

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 1

Percentage increase = Difference/Original Value
=> 350 - 280 = 70
=> 70/280 * 100 = 25%

.•., the percentage increase in her marks is 25%.

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Answer 2

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'