Question

please solve question no 9,10,11

Answer 1

9) CP = Rs.650
Loss = 13%

Loss = Loss %*CP
=13/100*650
=Rs. 84.5

10) Total CP = Rs.20000+Rs.100
= Rs.20100
Profit = 12%

Profit = Profit %*CP
= 12/100*20100
=Rs. 2412

10) Let cost price of each articles be x and y

For x, she had 20% profit
=>x+20% of x = 840
=>x+1/5 x = 840
=>x =700

For y, she had 20% loss
=>y-20% of y = 840
=>y-1/5 y = 840
=>y = 1050

So, CP of two articles = 700+1050=Rs.1750
SP of two articles = 840+840=Rs.1680

As CP>SP,
Loss = CP-SP = 1750-1680 =Rs.70

Loss% = Loss/CP *100
= 70/1750 *100
= 4%


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