Question

by selling a grand piano for $4200,a dealer gains 5%. if the transportation cost of the piano was $100, find the purchasing cost of the piano.

Thank you for your help

Answer 1

Step-by-step

selling price=4200rs

transportation cost=100rs

gain%=5%

cost price=s.p×(100÷100+gain%)

=4200×(100÷100+5%)

4200×100÷105=

cost price=4000rs

transportation cost=100rs

total cost price=4000+100=4100rs