| Arvind purchased a wrist watch with 30% discount on the labelled price. He sold it with 40% profit on the price he bought. What was his per cent loss on the labelled price? |
A) 4
B) 8
C) 2
D) 6
Correct Answer: C
Solution :
| The total loss is given by \[=\left( a+b+\frac{a\times b}{100} \right)%\] |
| Here, \[a=-\,30,\]\[b=40\] |
| Then, \[\left( -\,30+40+\frac{-\,30\times 40}{100} \right)%\] |
| \[=(10-12)%=-\,2%\] |
| Since, \[-ve\] sign signifies loss. So, he has a loss of 2%. |
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