Question

The loss percent on selling $$140$$ geometry boxes at the loss of $$S.P$$. of $$10$$ geometry boxes is equal to ______ .

Answer 1

Suppose, the selling price of $$1$$ geometry box $$=1$$
Now, the selling price for $$140$$ geometry boxes $$=1\times 140$$
$$=Rs. 140$$
Similarly, selling price of $$10$$ geometry boxes $$=1\times 10$$
$$Rs. 10$$
Loss = selling price of $$10$$ geometry boxes $$=Rs. 10$$
So, loss percentage $$=\dfrac {Loss}{CP}\times 100$$
By using this formula,
Loss percentage $$=6\dfrac 23 \%$$.