IBM
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Numerical Ability
Profit and Loss
A man sold a book at loss of 10%.Had he sold it for 104rs more, he would have earned a profit of 10% .find the cost price of the book
A.400rs
B.520rs
C.640rs
D.840rs
Read Solution (Total 6)
-
- loss=10% profit=10%
difference of overall profit and loss=10-(-10)=20%
20% of cp =sp
20/100*cp=104
20*cp=104*100
cp=10400/20
cp=520 - 8 years agoHelpfull: Yes(19) No(0)
- Let cost price be x,
selling price =90% of x(since he is having 10% loss)
90% of x +104 = 110% of x (since he is having 10% profit)
90% of x + 104 = 110% of x
110/100 * x - 90/100 * x = 104
x/5=104
x= 104*5=520
- 8 years agoHelpfull: Yes(9) No(0)
- Adding rs104 to the current sp compensates the loss of 10% + gives a profit of extra 10%.
I.e. rs104 is 20% of the cp
So cp is rs520 - 8 years agoHelpfull: Yes(2) No(1)
- 90%c.p+104=110%c.p
or,20%c.p=104
or,c.p=10400/20=520
- 8 years agoHelpfull: Yes(2) No(0)
- from this qustion, man is in loss of 10% which means he sold the book on 90% of its cost price , when he sold the book for 104rs more he earned 10%,which means he sold the book on 110% of its cost price means (110-20)%=20% of cost price of book is 104rs therefor cost price of book=104*5=520
- 8 years agoHelpfull: Yes(1) No(0)
- B.520
let cp=x rs
at 10% loss s.p=90x/100
new s.p=(90x/100)+104
so (90x/100)+104=(110/100)*x
by soving we get x=520rs - 8 years agoHelpfull: Yes(0) No(0)
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