Math, asked by trushalichaudhari96, 1 month ago

the price of the car has decreased by 10% and 20% in successive years. if the original cost of the car was rs. 10000 what is the current price?​

Answers

Answered by adityamanojchauhan
0

Answer:

The price of an article is decreased by 10%. T o restore its former value the new price must be increased by :

A) 10%

B) 11%

C) 1118%

D) 1119%

Correct Answer:

D) 1119%

Step-by-step explanation:

Answered by kshitijgrg
0

Answer:

the current price of the car is Rs.7200.

Step-by-step explanation:

Given,

The lower quantity in the first year = 10%

The lower quantity in the 2nd year = 20%

To find,

The percent of charge decrease after years.

We can simply solve this mathematical trouble through the usage of the subsequent mathematical process.

Let, the charge of the car = Rs. x

Price after the bargain of 1st year = x - (x×10÷100) = x - x÷10 = Rs. 9x÷10

Price after the discount of second year = 9x÷10 - (9x÷10 × 20÷ 100) = 9x÷10 - 9x÷50 = 45x-9x÷50 = 36x÷50 = Rs. 18x÷25

Amount of charge decreased = x - 18x÷25 = Rs. 7x÷25

Percentage of charge decreased = 100 × (7x÷25 ÷ x) = 100 × (7x÷25 × 1÷x) = 100 × 7÷25 = 28%

the original cost of the car is Rs.10000

after applying a 28% decrease in the original cost car is

= 10000 × 28÷100

= 2800.

now, 10000 - 2800 = 7200.

therefore the current price of the car is 7200.

#SPJ2

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