If an athlete's weight decreases from 180 pounds to 175.5 pounds, what is the percent decrease?

Question

Rohan buys an old bike for Rs. 13500 and spends Rs. 4250 on its repairs.
If he sells the bike for Rs. 27000, what is his gain in percent?

Answer 1

2.5%

---

(180-175.5)/180=0.025=2.5%