Question

Can someone help me get the answer, please? The answer is correct from the red box

Answer 1

1. $50

2. $144

3. $425

4. $617.5

Explanation:

1. Original price (P) = $40 and markup (r) = 25%

So, the original price will increase by 25%.

Hence, the new price after markup will be
`= P + P * (r)/(100)`

=
`P[1+(r)/(100) ]`

=
`40[1+(25)/(100) ]`

=
`40[1.25]`

= $50 (Answer)

2. Similarly, if original price = $90 and markup = 60%, then the new price after markup will be

=
`90[1+(60)/(100) ]`

= 90 × 1.6

= $144 (Answer)

3. Similarly, if original price = $250 and markup = 70%, then the new price after markup will be

=
`250[1+(70)/(100) ]`

= 250 × 1.7

= $425 (Answer)

4. Similarly, if original price = $475 and markup = 30%, then the new price after markup will be

=
`475[1+(30)/(100) ]`

= 475 × 1.3

= $617.5 (Answer)