# When 30 is subtracted from a number, the result is 80% of the number. Find the number?

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When 30 is subtracted from a number, the result is 80% of the number. Find the number?
1. 120
2. 110
3. 150
4. 80

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Correct Answer - Option 3 : 150

Given :

When 30 is subtracted from a number, the result is 80% of the number

Calculations :

Let the number be 100x

According to the question

100x - 30 = 80% of 100x

100x - 30 = 80x

⇒ 20x = 30

⇒ x = 3/2

So,

⇒ 100x = 100 × (3/2)

⇒ 150

∴ Option 3 is the right answer.