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Q.

 A man bought certain no. of chairs for Rs. 10000 he kept one for his own we and sold the rest at the rate Rs. 50 more than he gorse for the one chair beside getting his own chair for nothing he made a profit of Rs. 450 has many chairs did he buy?


Class: Grade 9


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a

  10

b

  −10

c

  20

d

  −20  

answer is C.

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Detailed Solution

 np = 10000 ,   P = 10000/n
Question ImageQuestion ImageQuestion ImageQuestion ImageQuestion Image Question ImageQuestion ImageQuestion ImageQuestion ImageCan’t be negative number of chairs
no. of chairs = 20
 
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