7. Find the selling price of an article marked at 240 and sold at a discount of 8%.
8. A shopkeeper allows 12% discount on the printed price of an article. What does a
pay for the article marked at 150 ?
Answers
Answered by
0
Answer:
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Answered by
0
Answer:
a) Let the C.P. = Rs. x
Profit =20%
Then S.P. =
100
120
×x=
5
6x
⇒
5
6x
−x=240
⇒
5
x
=240
⇒x=240×5
⇒x= Rs. 1200
Then S.P. =1200+240= Rs. 1440
b)let Marked price of an article be x
Discount on article =x−10%ofx
=x−
100
10
x
=0.9x
Therefore, selling price of the article=0.9x
Now, Gain % =
cp
sp−cp
Put the value of gain % and sp in the above equation and calculate cp.
100
8
=
cp
0.9x−cp
8cp=90x−100cp
108cp=90x
cp=
108
90x
cp=
6
5x
Therefore, cost price cp marked above marked price(mp) =
cp
mp−cp
×100
Put the valus of cp and mp in the above equation
=
6
5x
x−
6
5x
×100
=
6
5x
6
x
20%
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