Question

One-tenth of the cars in a car park are yellow. Another car arrives and now one-ninth of the cars are yellow. How many cars are now in the car park?

Answer 1

Hope this helps you....

Answer 2

Answer:

90 cars

Step-by-step explanation:

Let the number of car be x

We are given that One-tenth of the cars in a car park are yellow.

So, number of yellow cars =$\frac{x}{10}$

Now we are given that Another car arrives and now one-ninth of the cars are yellow

So, now number of cars = $\frac{x}{9}$

A.T.Q

$\frac{x}{10}+1=\frac{x}{9}$

$\frac{x+10}{10}=\frac{x}{9}$

$9(x+10)=10(x)$

$9x+90=10x$

$x=90$

Hence there are 90 cars in the park .