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.

David Wartell asked Aug 11, 2023

3,538 views

20 votes

David Wartell asked Aug 11, 2023

2.9k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

21 votes

Answer:

Orginal Speed is 135

Explanation:

The ratio of final speed: original speed is

$(2)/(3\\)$

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

(2)/(3) =90/x

$2x=270\\x=135$

3.0k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers