প্রশ্ন সংশোধন করুন
প্রশ্ন:
An article when sold at a gain of 5% yields TK. 15 more than when sold at a loss of 5% . Its cost price would be :
An article when sold at a gain of 5% yields TK. 15 more than when sold at a loss of 5% . Its cost price would be :