a man soldctwo pens at rs99each. he sold one at a loss of 10% and the other at gain of 10% find his loss or gain %
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no loss and no gain... I think so
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Let the CP be Rs 100.
Loss = 10%
SP will be Rs 90.
Now, By Unitary method ,
If 90 is SP ,then 100 is CP.
So, If 99 is SP , CP will be 100/90 *99 = 110 .
Again, Gain = 10%
SP will be 110 .
Now, By Unitary method,
If 110 is SP , 100 is CP.
So, if 99 is SP , CP will be 100/110 *99= 90.
So, Total SP = (99+99)= 198.
Total CP = (110+90)= 200.
Thus, Loss = (200-198)= 2.
Loss % = 2/200*100 = 1%.
Loss = 10%
SP will be Rs 90.
Now, By Unitary method ,
If 90 is SP ,then 100 is CP.
So, If 99 is SP , CP will be 100/90 *99 = 110 .
Again, Gain = 10%
SP will be 110 .
Now, By Unitary method,
If 110 is SP , 100 is CP.
So, if 99 is SP , CP will be 100/110 *99= 90.
So, Total SP = (99+99)= 198.
Total CP = (110+90)= 200.
Thus, Loss = (200-198)= 2.
Loss % = 2/200*100 = 1%.
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