Esme plays a game. She can win, lose or draw the game
The probability that Esme will win the game is 0.4
The probability that she will lose the game is 0.15
a) work out the probability she will draw the game
Esme plays the game 120 times.
b) Work out an estimate for the number of times she will win the game

Please explain how you got the answer to b please because that's the part I don't understand