The average temperature on Monday, Tuesday and Wednesday is 40° C. Tuesday, Wednesday and Thursday have an average temperature of 41° C. If Thursday's temperature was 42° C, what was the temperature on Monday?
1
40° C
2
39° C
3
41° C
4
35° C
The average temperature on Monday, Tuesday and Wednesday is 40° C. Tuesday, Wednesday and Thursday have an average temperature of 41° C. If Thursday's temperature was 42° C, what was the temperature on Monday?