Bank Math Master১টি পরীক্ষায় এসেছেপ্রশ্ন ২০A man bought some toys at the rate of 10 for Tk. 40 and sold them at 8 for Tk. 35. Find his gain or loss percent.কক) 10%খখ) 9.5%গগ) (75/8)%ঘঘ) (71/5)%উত্তর দেখুন