Question

Manoj incurred a loss of 10% on selling a blanket for rupees 1080 find the cost price of the blanket​

Answer 1

Answer:

10800

Step-by-step explanation:

given,

SP=10/100*CP=1/10*CP=1080

i.e.CP=10800

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Answer 2

Answer:

Rs.1,200

Step-by-step explanation:

SP = 1080

Loss = 10%

CP = ?

Loss = CP - SP

Loss% = 100*(Loss/CP)

Loss% = 100*[(CP - SP)/CP]

Loss% = 100*(1 - (SP/CP))

=> SP = CP*[1 - (Loss%/100)}

Substituting for SP and Loss%, we get:

1080 = CP(1 - (10/100))

1080 = CP(1 - 0.1)

1080 = CP(0.9)

CP = 1080/0.9 = 1200

Cost price of the blanket is Rs.1,200

Alternative Method:

Loss = 10%

This means if CP = 100 then SP = 90

Now, SP = 1080

=> CP = (1080*100)/90

=> CP = 1200

We have used:

a:b :: c:d => d = (b*c)/a