Question

A salary of an officer is increased by 25%. By what per cent should the new salary be decreased to restore the original salary? who will answer I will mark as brainliest

Answer 1

Let the original salary be 100.

Given that the salary of an officer is increased by 25%.

⇒ 100 + 25% of 100

⇒ 100 + 25/100 * 100

⇒ 125.

So,

⇒ 125% of x = 100

⇒ (125/100) * x = 100

⇒ 125x = 10000

⇒ x = 10000/125

⇒ x = 80.

Therefore, the decreased % = (100 - 80) = 20%.

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Hope this helps!

Answer 2

Let Original Salary = 100 

After increase = 125/100 x 100 = Rs.125

To restore the original salary, decrease=(125-100)/125 , 25/125 = 1/5 = 20 %