Question

a man loses 10% by selling his watch ruppe 450 .find the cost price of the watch​

Answer 1

Answer:

ANSWER: CP IS RS. 500

Step-by-step explanation:

given:

loss= 10%

SP=450

CP=?

let CP be 100

SP= CP(100-LOSS%)/100

  =100(90)/100

  =9000/100

  = RS.90

BY DIRECT VARIATION

IF

CP=100       SP=90

CP=?           SP=450

=(450*100)/90

=45000/90

=500

ANSWER: CP IS RS. 500

Answer 2

Answer:

cost price is 500

Step-by-step explanation:

if man looses 10% then 450 is the 90% of total price...

so let total price be x

$x \times 90\% = 450 \\ x = (450 \times 100) \frac{1}{90} \\ x = 500$

therefore cost price is 500

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