Question

sneh gains 10% on selling a pen. if she sells it at double the price, what is the profit percent?​

Answer 1

Step-by-step explanation:

let the c.p = rs 100

then s.p = 100 + gain % × c.p / 100

110/ 100 ×100

rs. 110

new s.p = 2×110 = rs 220

therefore profit = 120/100 × 100

120 % is answer

Answer 2

Answer: Sneh gains 120 % profit on doubling the selling price of pen.

Step-by-step explanation:

Let the cost price of pen be y

Profit percent of Sneh = 10

Profit gained by Sneh  = Profit % × Cost Price

Profit gained by Sneh  =  10 % × y

Profit gained by Sneh  =  $\frac{10y}{100}$

Profit gained by Sneh  =  $\frac{y}{10}$

Selling Price = Cost Price + Profit

Original selling price of pen = $y + \frac{y}{10}$

Original selling price of pen = $\frac{11y}{10}$

New selling price of pen = 2 × original selling price

New selling price of pen = 2 ×  $\frac{11y}{10}$

New selling price of pen =  $\frac{11y}{5}$

Profit = Selling Price - Cost Price

New profit on pen = $\frac{11y}{5} - y$

New profit on pen = $\frac{6y}{5}$

Profit percentage = Profit/Cost Price × 100

Profit percentage on pen = $\frac{6y}{5y} * 100$

Profit percentage on pen = 120

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