Question

increase 400 by 10% and then decrease it by 10%.Is the answer same as the orignal losser?​

Answer 1

Answer:

$= 400 + 10\% \: of \: 400 \\ = 400 + \frac{10}{100} \times 400 \\ = 440 \\ \\ = 440 + 10\% \: of \: 440 \\ = 440 + 440 \times \frac{10}{100} \\ = 484 \\ \\ resultant \: number > original \: number$