Question

a dealer gets rs 30 less if instead of selling a chair at a gain of12 % he sells it at a gain of8% . Find the cost price of the chair class8B CCE Test Paper-10

Answer 1

Let CP =x
Gain = 12%
SP = x * (100 +12)/100
=x*112/100
=28x/25
CP=x
Gain =8%
SP=x * (100 +8)/100
=x*108/100
27x/25
Loss =SP 1 - SP 2
₹30=28x/25 - 27x/25
₹30=28x-27x/25
₹30=1x/25
₹30*25=x
₹ 750 =x

Answer 2

Let CP =x

Gain = 12%

SP = x * (100 +12)/100

=x*112/100

=28x/25

CP=x

Gain =8%

SP=x * (100 +8)/100

=x*108/100

27x/25

Loss =SP 1 - SP 2

₹30=28x/25 - 27x/25

₹30=28x-27x/25

₹30=1x/25

₹30*25=x

₹ 750 =x

Bye friends