9.A shopkeeper sells one transistor for Rs. 840 at a gain of 20% and another for Rs. 960 at a loss of 4%. His total gain or loss percent is
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Gain on transistor =20% of 840
Gain=20/100*840:
168 gaining
Loss on another =4% of 960
= 4/100*960
=38.40
Over all gain=129.60
Total cost price =840+960=1800
Gain %=129.60/1800*100
Gain=20/100*840:
168 gaining
Loss on another =4% of 960
= 4/100*960
=38.40
Over all gain=129.60
Total cost price =840+960=1800
Gain %=129.60/1800*100
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