Latest IBM Aptitude Question SOLUTION: 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

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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

Asked In IBM skk (7 years ago)

Unsolved Read Solution (6)

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ranjeet kumar  (7 years ago)

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

Is this solution Helpfull? Yes (19) | No   

Vivek Prasad  (7 years ago)

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

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Swapnil Shashank  (7 years ago)

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

Is this solution Helpfull? Yes (2) | No (1)  

Shristy kashyap  (7 years ago)

90%c.p+104=110%c.p
or,20%c.p=104
or,c.p=10400/20=520

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AMIT KUMAR  (7 years ago)

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

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Shubham Nigade  (7 years ago)

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

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