Question

Decrease 80g by 25%​

Answer 1

Answer:

New value =

- 80 + Percentage decrease =

- 80 + (- 25% × - 80) =

- 80 - 25% × - 80 =

(1 - 25%) × - 80 =

(100% - 25%) × - 80 =

75% × - 80 =

75 ÷ 100 × - 80 =

75 × - 80 ÷ 100 =

- 6,000 ÷ 100 =

- 60

Answer 2

$\frac{x}{80} = \frac{25}{100} \\ \\ x = 20 \: g \\ \\ 25\% \: of \: 80 \: g \: is \: 20 \: g \\ \\ reduce \: 80 \: g \: by \: 25\% \\ = 80 - 20 \\ = 60 \: g$