Question

please answer fast ​

Answer 1

Step-by-step explanation:

cost of car = 400000

increased price =450000

According to the question

$450000 = 400000(1 + \frac{r}{100} ) \\ (1 + \frac{r}{100} ) = \frac{450000}{400000} \\ ( \frac{100 + r}{100} ) = \frac{9}{8} \\ 100 + r = \frac{9}{8} \times 100 \\ r = 112.5 - 100 = 12.5\%$