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CBSE Class 8 Answered

David bought 100 erasers for Rs.250. He was not very good at calculation and made a mistake in fixing his selling price. When he sold his erasers, he incured a loss equal to the selling price of 25 erasers. Find his loss percent?
Asked by jaiswalsindhuli717 | 10 Sep, 2018, 04:09: PM
answered-by-expert Expert Answer
 
Given:
Cost price of 100 erasers = Rs. 250
Let,
the selling price of one eraser = x
Total selling price = 100x
Total loss = selling price of 25 erasers = 25x
We know that,
Loss = C.P - S.P 
 25x =250 - 100x 
125x = 250
x = 2
Loss = 25x = 25 × 2 = 50 
Loss percent = begin mathsize 16px style fraction numerator Loss over denominator straight C. straight P space end fraction space cross times space 100 space equals space 50 over 250 space cross times space 100 space equals space 20 percent sign
end style
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