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let CP of one pen be rs. x
CP of four pen =4x=SP of 5 pen
So, SP of 1 pen=4x/5
SP of 1 pen is less than CP of 1 pen.
so obviously,its loss.
loss%={(CP-SP)/CP}*100%
={(x-4x/5)/x}*100#
=(x/5x)*100%
=20% opn (ii) is correct.
done.
feel free to asl anything.
CP of four pen =4x=SP of 5 pen
So, SP of 1 pen=4x/5
SP of 1 pen is less than CP of 1 pen.
so obviously,its loss.
loss%={(CP-SP)/CP}*100%
={(x-4x/5)/x}*100#
=(x/5x)*100%
=20% opn (ii) is correct.
done.
feel free to asl anything.
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