Question

Mr Sinha sold two tape-recorders for rupees 990 each; gaining 10% on the other. Find his total loss or gain, as percent on whole transaction.

Answer 1

.........................................

Answer 2

Sp=990

P=10%

Cp=sp×100/100+p%

=990×100/100+10

990×100/110=900

2nd sp=990

L=10%

2nd cp=2nd sp×100/100-L%

990×100/100-10 = 1100

2nd cp=1100

Total sp=990+990=1980

Total cp=900+1100=2000

L=cp-sp

L=2000-1980=20

L=20

L%=1×100/cp

20×100/2000=1

L%=1%