Based on given numbers, make a reasonable guess that all ice will melt. Then write down heat input into ice in three terms: (1) heat input as ice warms up to 0°C, (2) heat input as ice melts into water, and (3) heat input as water from melted ice heats up to the final temperature. First two steps can be done independently of final temperature; step (3) will need to be written in terms of final temperature, , and you will need to go through some algebra to solve for , after equating heat input into ice with heat output from water.