Flight speed 17m / s. The flight speed of the crow is 90% of the flight speed of the dove. Find the speed of the crow.

From the condition it is known that the flight speed of the pigeon is 17 m / s. It is also known that the flight speed of a crow is 90% of the flight speed of a dove. In order to find the speed of the crow’s flight, we will compose and solve the proportion.

Let’s take the pigeon’s flight speed as 100%. And for x we denote the speed of the raven.

We proceed to drawing up and solving the proportion.

17 m / s – 100%;

x m / s – 90%;

We got the proportion:

17 / x = 100/90;

We are looking for an unknown middle term of the proportion:

x = (17 * 90) / 100 = 1530/100 = 15.3 m / s flight speed of the crow.