Bank Math Master১টি পরীক্ষায় এসেছেপ্রশ্ন ১৯A watch which gains 5 seconds in 3 minutes was set right at 7 a.m. In the afternoon of the same day, when the watch indicated quarter past 4 o'clock, the true time is:ক3 : 59 p.m. খ4 : 00 p.m. গ3 : 58 p.m. ঘ4 : 03 p.m. উত্তর দেখুন