SaiBook.us Math

Home Course Section Lesson

Lesson Topics Discussion Quiz: Class Homework

Example1

Title: Ratios

Grade Lesson s3-l7

Explanation: The best way to understand SAT-4 is by looking at some examples. Take turns and read each example for easy understanding.

Examples

Topics → Definition Example1

If a:b is 3:4 and b:c is 2:5, what is a:b:c?

Step: 1

Here a:b = 3:4 and b:c = 2:5.

Explanation:

Given ratio one is 3:4, and the ratio 2 is 2:5.

Step: 2

Just multiply with such a number that the B is the same Here a:b is multiplied by 2, i.e., a:b = (3:4 ) 2 = 6:8.

Explanation:

Here, we can multiply the first ratio by 2 then we get 6:8.

Step: 3

Here b:c is multiplied by 4, i.e., a:b = (2:5 ) 4 = 8:10.

Explanation:

Here, we can multiply the second ratio by four then we get 8:10.

Step: 4

So, the new ratio is a:b:c is 6:8:10.

Explanation:

Therefore, the new ratio a:b:c is 6:8:10.