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CBSE Class 7 Answered

By seeling a tv for 8000 a shopkeeper loses 20% of his cost if he sells it for 1100 what profit or loss would be there
Asked by 1137830696391973 | 01 Oct, 2018, 04:34: PM
answered-by-expert Expert Answer
Let the cost price be Rs. x.
 
By selling a tv for 8000 a shopkeeper loses 20% of his cost.
 
Loss = S.P - C.P = x - 8000 
begin mathsize 16px style Loss percent sign space equals space fraction numerator Loss over denominator straight C. straight P end fraction cross times 100 space
rightwards double arrow space 20 space space space equals space open parentheses fraction numerator begin display style straight x space minus space 8000 end style over denominator begin display style straight x end style end fraction close parentheses cross times 100
rightwards double arrow 20 straight x space space equals space 100 straight x space minus space 800000
rightwards double arrow 80 straight x space space equals 800000
rightwards double arrow straight x space space space space space space space equals space 10000
space end style
if he sells it for 1100.
Here S.P < C.P
Loss = Cost Price - Selling Price = 10000 - 1100 = 8900
begin mathsize 16px style Loss percent sign space equals space fraction numerator Loss over denominator straight C. straight P end fraction cross times space 100 space equals space 8900 over 10000 space cross times 100 space minus space 89 percent sign end style
Answered by Yasmeen Khan | 01 Oct, 2018, 06:06: PM
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