Question

Decrease 140g by 25%

Answer 1

Answer:

• let's first get the percentage decrease:

$= { \rm{100\% - 25 \% }} \\ { \rm{ = 75\%}}$

• then multiply the percentage decrease with the mass given:

$= { \tt{75\% \times 140}} \\ \\ = { \tt{ \frac{75}{100} \times 140}} \\ \\ = { \underline{ \tt{ \: \: 105 \: g \: }}}$

Answer 2

Answer:

let's first get the percentage decrease:

=100%−25%

=75%

• then multiply the percentage decrease with the mass given:

=75%×140

= 75/100 ×140

= 105g