A number is first increased by 5% and then it is further increased by 20%. The original number is increased by:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 26%.
Let the original number = 100
Step 1: Increase by 5% = 100 + 5% of 100 = 100 + 5 = 105
Step 2: Increase 105 by 20% = 105 + 20% of 105 = 105 + 21 = 126
So, the final value = 126
Net Increase = 126 - 100 = 26
⇒ Net % Increase