john sold his watch for 30 rupees and lost 14% on it. Find the cost price of the watch
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100-14/100=86/100loss
86/100 cp= 30
43/50 cp =30
cp=30 ×50 /43 =1500/43 =34.88
86/100 cp= 30
43/50 cp =30
cp=30 ×50 /43 =1500/43 =34.88
Answered by
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Let cost price of a watches be cc and (540−c)(540−c)
Total cost price = 540
Total selling price
=110c100+85(540−c)100=110c+45900−85c100=25c+45900100=110c100+85(540−c)100=110c+45900−85c100=25c+45900100
540=25c+4590010054000=25c+4590025c=8100c=324540=25c+4590010054000=25c+4590025c=8100c=324
Cost prices of the watches are Rs.324 and (540-324)= Rs.216 try
Total cost price = 540
Total selling price
=110c100+85(540−c)100=110c+45900−85c100=25c+45900100=110c100+85(540−c)100=110c+45900−85c100=25c+45900100
540=25c+4590010054000=25c+4590025c=8100c=324540=25c+4590010054000=25c+4590025c=8100c=324
Cost prices of the watches are Rs.324 and (540-324)= Rs.216 try
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