Question

The value of a car decreases annually by 20%. If the present value of the car
be Rs. 4,50,000, what will be its value after two years?​

Answer 1

Given :

Present value of the car ( x ) = Rs3,45,000

Annually decrease of the value = d = 20%

To Find :

Car value after 2 years ?

Solution :

$\implies\sf{present \: value \times \frac{(100 - d)}{100} } \times \frac{(100 - d)}{100}$

$\implies\sf{345000 \times \frac{(100 - 20)}{100} \times \frac{(100 - 20)}{100} }$

$\implies\sf{(345000) \times \frac{80 \times 80}{100 \times 100} }$

$\implies\sf{Rs 2, 20,800}$

Hence, Value of car after 2 years = Rs. 2,20,800

☆Extra Information ☆

Percentage - a rate, number, or amount in each hundred is known as percentage.