Basketball player John, Vasim, Akash were practising the ball drop in the basket. The probability of success for John, Vasim and Akash are `(4)/(5)`, 0.83 and 58% respectively. Who had the greatest probability of success?

A JEE aspirant estimates that she will be successful with an 80% chance if she studies 10 hours per day, with 60% chance if she studies 7 hourse per day, and with a 40% chance if she studies 4 hours per day. She further believes that she will study 10 houers, 7 hours, and 4 hours per day with probabilities 0.1,0.2and 0.7, respectively. The chance she will be successful is