लाभ और हानि के कुछ महत्वपूर्ण प्रश्न

#profitandloss_math
#profitandlosstricks
#profitandloss
#profitandlossbasicquestion
#profit_and_loss
#profitandLossbasicquestions
#लाभ_और_हानि
#profitandloss_trick
#profitandloss_math
#profitandlosstricks
#gaganpratapmaths
#abhinaymaths
#mathematics#mathematics