Question

length and breadth of rectangle are directly proportional if the length is increased

Answer 1

Given that the length and the breadth are directly proportional

Define x:

Let the original breadth be x

We will use the similar length rule to solve for the missing breadth:

Plug in the know values:

Solve x:

Cross multiply:

Combine like terms:

Divide both sides by 21:

Answer: The original breadth was 4 cm  ✔✔

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