গাণিতিক যুক্তি MCQ
Rafiq and Abir start simultaneously from a place A towards B 50 km apart. Rafiq's speed is 3km/h less than that of Abir. Abir, after reaching B, turns back and meets Rafiq at a places 10 km away from B. Rafiq's speed is-
সঠিক উত্তর
6 kmph