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15. Find the rate of discount when marked price is $900 and selling price is 720.​

Answer»

em>Answer:  

m.k is rupees 900  

and s.p is 720  

so D is of rupees 180  

and discount percent is 20%

Step-by-step explanation:  

SEE m.k is rupees 900  

and s.p is 720  

so to FIND discount we have to subtract 720 from 900  

so D is of rupees 180  

D% =D/m.k and ×by 100  

so 180/900×100  

00 of 900 has been cut by 00 of 100  

so 180/9 =20  

so the D % is 20 and D is 180

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