12. Aflask was sold at 72 incurring a lossof10%What was its cost price – InterviewSolution

1.	12. Aflask was sold at 72 incurring a lossof10%What was its cost price?
Answer» let the cost price be xsox - 10% of x = 72x - 10/100 × x = 72x - x/10 = 729x/10 = 72x = (72×10)/9 = 80so cost price be ₹ 80

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