Question

If the cost price of 10 chairs be equal to the selling price of 16 chairs, find the gain or loss per cent.​

Answer 1

Answer:

ans:- 12.5%

Step-by-step explanation:

Let, CP of 1 chair be x.

Let, CP of 1 chair be x.CP of 18 chairs is 18x=SP of 16 chairs.

Let, CP of 1 chair be x.CP of 18 chairs is 18x=SP of 16 chairs.CP of 16 chairs =16x

Let, CP of 1 chair be x.CP of 18 chairs is 18x=SP of 16 chairs.CP of 16 chairs =16xSince, SP>CP

Let, CP of 1 chair be x.CP of 18 chairs is 18x=SP of 16 chairs.CP of 16 chairs =16xSince, SP>CPProfit=SP−CP

=18x−16x=2x

=18x−16x=2xProfit(%)=

=18x−16x=2xProfit(%)= CP

=18x−16x=2xProfit(%)= CPprofit

=18x−16x=2xProfit(%)= CPprofit

=18x−16x=2xProfit(%)= CPprofit ×100

=18x−16x=2xProfit(%)= CPprofit ×100=

=18x−16x=2xProfit(%)= CPprofit ×100= 16x

=18x−16x=2xProfit(%)= CPprofit ×100= 16x2x

=18x−16x=2xProfit(%)= CPprofit ×100= 16x2x

=18x−16x=2xProfit(%)= CPprofit ×100= 16x2x ×100

=18x−16x=2xProfit(%)= CPprofit ×100= 16x2x ×100=

=18x−16x=2xProfit(%)= CPprofit ×100= 16x2x ×100= 8

=18x−16x=2xProfit(%)= CPprofit ×100= 16x2x ×100= 8100

=18x−16x=2xProfit(%)= CPprofit ×100= 16x2x ×100= 8100

=18x−16x=2xProfit(%)= CPprofit ×100= 16x2x ×100= 8100 =12.5%