Question

By selling a chair for RS 720, a trader gains 20%. Find the cost price of the chair.

Answer 1

Answer:Sp=Rs750

P%=20%

Cp=100+P%×Sp÷100

=100+20×750÷100

=120×750÷100

=12×75

=900

Cp=rs900

Step-by-step explanation:

Answer 2

Answer:

• The Cost Price ( C.P ) of the Chair is Rs 600

Step-by-step explanation:

Given :

• The selling Prize (S.P ) a chair for RS 720

• The Gain percentage % = 20 %

To find :

The cost prize of the chair

The Formula to find the cost prize ( C.P )

The Formula to find the cost prize ( C.P )When S.P and Profit % is given

➨ Let the cost price of the chair be Rs 100

➨ Then Gain = Rs 20

➨ ∴ SP = RS ( 100 + 20 ) = RS 100

➨ IF THE SP IS RS 120 , THEN CP = RS 100

➨ IF THE SP IS RE 1, THEN CP = RS ( 100 / 200 )

➨ IF THE SP IS RS 720 , THEN CP = RS ( 100 / 120 × 720 )

= 600

HENCE, THE CP OF THE CHAIR IS RS 600

Additional information

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Profit, P = SP – CP; SP>CP

Loss, L = CP – SP; CP>SP

P% = (P/CP) x 100

L% = (L/CP) x 100

SP = {(100 + P%)/100} x CP

SP = {(100 – L%)/100} x CP

CP = {100/(100 + P%)} x SP

CP = {100/(100 – L%)} x SP

Discount = MP – SP

SP = MP -Discount

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