A number is first increased by 5% and then it is further increased by 15%. The original number increased altogether by:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 20.75%.
Let the original number = 100
Final number = 100 × (105/100) × (115/100) = 120.75
Net increased = 120.75 - 100 = 20.75%