#A_shopkeeper_sells_his_goods_at_80_percent_of_their_cost_price_Find_his_gain_or_loss_percent.
#competitiveexamspreparation #class_6_7_8 #learn_with_saiba #most_important_question #ncert_maths_solution
#selinasolutions
#profit_and_loss #ssc_cgl_bank_railway_exams #loss_and_profit