Question

Rajni sold a mobile phone for ₹ 8000 at a loss of 20% to her neighbourhood student. What was the cost price of rajni's mobile?​

Answer 1

Answer:

8400 rs. = cp

please mark as brainliest

Answer 2

Answer:

Let the CP be $100.

Then,SP = $(100-20)=$80

If SP =$80,then CP =$100

If SP=$8000,then CP =$(100/80×8000)=$10000

:.,The CP of Rajni's mobile was $10000.