Question

A shopkeeper first increased the price of an article by 25% and then by 20%. What is the total
percent increase?
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Answer 1

Answer:

Let us take the real price of the article as ₹100

When the shopkeeper increases the price of the article by 25% , the cost of the article becomes:

\frac{25}{100} \times 100

100

25

×100

= 25=25

So the price of the article becomes ₹125.

Again when he increases the cost by 20% ,

20% of ₹125 is :

\frac{20}{100} \times 125

100

20

×125

= ₹25

This says that finally he sets the price of the article as ₹ 125 + ₹ 25 = ₹ 150.

The actual cost was ₹ 100 as we took in the beginning.

Now he increased totally ₹50.

So the total percent becomes :

\frac{50}{100} \times 100

100

50

×100

= 50 %

Hope it helps ✌️

Answer 2

Step-by-step explanation:

Let the price of article is Rs. 100

First increase % = 20%

After increase, price of article

=100×120100=Rs.120

Second decrease % = 25%

After decrease, price of article

=120−120×25100=Rs. 90

Net change percent in price

=100−90100×100=10100×100=10%