Question

Increase 164 x 12.5%

Answer 1

Your answer would be 20.5 

12.5% as a decimal is .125; so .125 x 164 = 20.5

Answer 2

We need to find 12.5% of 164. 10% of 164 = 16.4, and 1% of 164 = 1.64, so

16.4 + 1.64(2) + 1.64(1/2) = 16.4 + 3.28 + 0.82 = 20.5. 12.5% is 20.5. Add that to 164 and you have your answer:

164 + 20.5 = 184.5.

Answer:
184.5