Question

a car reduced its speed in a ratio of 2 to 3 if the final speed was 90 km per hour then what was the original speed.​

Answer 1

Answer:

Orginal Speed is 135

Step-by-step explanation:

The ratio of final speed: original speed is

$\frac{2}{3\\}$

We know that 90 km is it final speed so, we set up a proportion

$\frac{2}{3} =90/x$

$2x=270\\x=135$