Jalil and Ismail are racing on a circular track. If Jalil takes 70 minutes and Ismail takes 56 minutes to complete the round. If they both start at the same point at the same time and go in same direction, after how many minutes will they meet again at the start point?
Emad and Ismail each have a bag that contains one ball each of the colors green, white, grey, blue, pink, red and black. Emad randomly selects a ball from his bag and puts it in Ismail's bag. Then Ismail randomly selects a ball from his bag and puts it in Emad's bag. What is the probability that after this the contents of the bag are the same as before?