Question

A set is sold at 20% loss.it sold 800 more He would receive a profit 5% .find the cost price

Answer 1

Answer:

Let selling price of table be 'x'

& cost price of table be 'y' then

⇒ cost =20%

100

los%

=

y

y−x

=1

y

x

y

x

=1−0.2

[x=0.8y] ... (1)

and if selling price = 800+x.

then

gain = 5%

gain%=

y

x+800−y

×100

0.05=

y

x

+

y

800

−1

1.05\times y=x+800$$

0.75y=800

y=

0.75

80000

1066.6 Rs

∴ cost price of table is 1066.6 RS.