Page 14 - Digi Notes : Maths - 11.03.2016

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13 : 12

Rs . 1600  100% : Rs . 1600  100%
120% 130%

Watch 1 Watch 2
20 % 30 %

x %

30  x % :  x 20 %

 30  x %  13
 x 20 % 12

 x  24 8 . %

17. A man sold two watches each for Rs.1620. He sold

one so as to gain 20% while the other so as to lose 20%.

Find his overall profit percentage.

2 : 3

Rs 1600.  100% : Rs 1600.  100%
120% 80%
Watch 1 Watch 2
20 %  20 %

x%
 20   x % : x 20 %

  20   x %  2
x 20 % 3
 x   4 %  4 % loss

OR

% P Overall  20  20  20 20   4 %  4 % loss
100

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