UPSC Civil Services 2014 Prelims General Studies Paper II

Let C.P of 1st goat is Rs. 100.
∴ S.P. of 1 st goat is Rs. 110(10% profit )
∴ S.P. of 2nd goat is Rs. 110 (Same S.P.)
∴ C.P. of 2nd goat =

100

90

×110(10% loss )
=

1100

9

∴ Total C.P.=100+

1100

9

=

2000

9

Total‌S.P.=2×110=220
∴Loss%=

( 2000 9 −220)×100

2000 9

=

20 9

2000 9

×100
=1%loss
Shortcut method: Loss%=(

common‌gain‌and‌loss%

10

)2 =

100

100

=1%