Question

If the price of an article increased from Rs. 80 to Rs. 100 then the increase in percentage is. A) 5/4 % B) 4/5 % C) 20% D) 25%

Answer 1

Answer:

Correct Answer:

B) 21

Description for Correct answer:

10% of 100 = 100×10100

New price = 110

Again, 10% of 110 = 110×10100 =11

New price = 110 +11=121

Required increment = 21100×100 = Rs.20

Explanation:

Please mark as brainliest answer and follow me please and thank me please Because I am a very good boy

Answer 2

Given :

• The original price if the article is Rs.80

• The Final price of the article is Rs.100

To Find :

• The percentage increase in the price of the article

Solution :

Increase in the price of article = Final price - orginal price

Increase in price = Rs.100 - Rs.80

Increase in price = Rs.20

Now percentage increase is given by ,

$\boxed{\sf{\purple{\%\:increase=\dfrac{Increase\:in\:price}{Original\:price}\times\:100}}}$

Applying the formulae ,

$\implies\sf{Percentage\:increase=\dfrac{20}{80}\times 100}$

$\implies\sf{Percentage\:increase=\dfrac{1}{4}\times\:100}$

$\implies\sf{Percentage\:increase=25\%}$

The percentage increase is 25%

Hence , Option(D) is the required answer.