Respuesta :
The cost price of a swim-suit, C.P.=$8
Option 1:
If the selling price is marked up by 25%, the new selling price is
[tex]S.P.=C.P.+C.P.\times 25\%[/tex]
[tex]=8+8\times\frac{25}{100}[/tex]
=8+2
=10
So, the selling price will be $10 which is the same as the mentioned selling price.
Hence, this option is correct.
Option 2:
If the selling price is marked up by 40%, the new selling price is
[tex]S.P.=C.P.+C.P.\times 40\%[/tex]
[tex]=8+8\times\frac{40}{100}[/tex]
=8+3.20
=11.20
So, the selling price will be $11.20 which is not the same as the mentioned selling price, $7.50.
Hence, this option is wrong.
Option 3:
If the selling price is marked up by 55%, the new selling price is
[tex]S.P.=C.P.+C.P.\times 55\%[/tex]
[tex]=8+8\times\frac{55}{100}[/tex]
=8+4.40
=12.40
So, the selling price will be $12.40 which is not the same as the mentioned selling price, $5.50.
Hence, this option is wrong.
Option 4:
If the selling price is marked up by 70%, the new selling price is
[tex]S.P.=C.P.+C.P.\times 70\%[/tex]
[tex]=8+8\times\frac{70}{100}[/tex]
=8+5.60
=13.60
So, the selling price will be $13.60 which is the same as the mentioned selling price.
Hence, this option is correct.
Option 5:
If the selling price is marked up by 75%, the new selling price is
[tex]S.P.=C.P.+C.P.\times 75\%[/tex]
[tex]=8+8\times\frac{75}{100}[/tex]
=8+6
=14
So, the selling price will be $14 which is the same as the mentioned selling price.
Hence, this option is correct.
