Question

. A student buys a pen for Rs 90 and sells it for Rs 100. Find his gain and gain percent

Answer 1

Answer:

$= 11 \frac{1}{9} \% \: \: is \: \: \: answer$

Step-by-step explanation:

Solution:

We know that the cost price of pen = Rs 90

Selling price of pen = Rs 100

By using the formula,

Gain = selling price – cost price

= 100 – 90

= Rs 10

By using the formula,

Gain % = (gain/cost price) × 100

= (10/90) × 100

= 100/9

$= 11 \frac{1}{9} \%$

Answer 2

Answer:

$</p><p>[tex]= 11 \frac{1}{9} \% \: \: is \: \: \: answer[/tex$

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Step-by-step explanation:

Solution:

We know that the cost price of pen = Rs 90

Selling price of pen = Rs 100

By using the formula,

Gain = selling price – cost price

= 100 – 90

= Rs 10

By using the formula,

Gain % = (gain/cost price) × 100

= (10/90) × 100

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