Question

a bicycle costs rs.800. after six months its value became rs. 650. by what percent has the price decreased?​

Answer 1

Answer:

75 percent

Step-by-step explanation:

may it's help you

Answer 2

Given: Cost of a bicycle = Rs. 800

          Value of bicycle after six months = Rs. 650

To find: By what percent has the price decreased

Let: The percentage decrease in the price be $x$.

Solution:

According to the given question,

Original price of the bicycle = Rs. 800

New price of the bicycle = Rs. 650

If the price has been decreased by $x$ %, then

∵ new price = original price - $x$ % of original price (decrease in the price)

⇒ $650 = 800 - \frac{800x}{100}$

⇒ $\frac{800x}{100} = 800 - 650 = 150$

⇒ $800x = 150 * 100 = 15000$

⇒ $x = \frac{15000}{800} = 18.75$ %

Hence, the price has decreased by 18.75% in six months.