Ravi and Rajiv decided to run a 960 m long race on a track as long as the length of the race. Which of the statement(s) below is (are) sufficient to conclude that Rajiv caught up with Ravi with 3/8 of the track length still to be covered?  Statement 1: Ravi is allowed to start 5 seconds before Rajiv started running. Statement 2: Ravi ran at 8 m per second. Statement 3: Rajiv ran at a speed of 10 m/s?