Question

What must be added to two numbers that are in the ratio of 3 : 5, so that they become in the ratio of 4 : 6
1. 1
2. 3
3. 2
4. 5

Answer 1

Correct Answer - Option 1 : 1

Given:

Two numbers that are in the ratio of 3 : 5

Concept used:

Ratio and proportion

Calculation:

Let the number added be x

According to the question

⇒ \(\frac{{3\ +\ x}}{{5\ +\ x}} = \frac{4}{6}\)

⇒ 18 + 6x = 20 + 4x

⇒ 2x = 2

⇒ x = 1

So, One should be added.