The table below shows some of the midday temperatures recorded at
Mount Everest over a seven-day period.
Day
Sun
Mon
Tue
Temp. (°C) -18 -21
-23
Wed
-19
Thu
-25
Monday was 3°C colder than Sunday.
Wednesday was 4°C warmer than Tuesday.
a) Complete the table using the information above.
Fri
-29
Sat
-26
b) What is the difference in temperature between the highest and lowest
temperatures given in the table?