Question

By selling an article for Rs 19.50 a dealer makes a profit of 30% By how much should he increase his selling price so as to make a profit of 40%

Answer 1

21 will be the answer

Answer 2

Answer: There is increase of Rs. 1.50 in his selling price to make a profit of 40%.

Step-by-step explanation:

Since we have given that

Selling price of an article = Rs. 19.50

Profit % = 30%

Let the cost price of an article be 's'.

So, it becomes ,

$\dfrac{100+30}{100}\times x=Rs.19.50\\\\\dfrac{130}{100}x=Rs. 19.50\\\\x=\dfrac{19.50\times 100}{130}\\\\x=Rs.15$

Thus, Cost price of an article is Rs.15.

If we wants to make a profit of 40%, then by how much he should increase his selling price.

$\dfrac{100+40}{100}\times 15\\\\=\dfrac{140}{100}\times 15\\\\=\dfrac{14}{10}\times 15\\\\=Rs. 21$

So, Increase in his selling price by Rs.21-Rs. 19.50=Rs. Rs.1.50

Hence, there is increase of Rs. 1.50 in his selling price to make a profit of 40%.