Question 1
The average mass of Mona, Amanda, Jack and Brian is 68kg. The mass of Mona and Amanda is 36kg less than the mass of Jack and Brian. If Mona’s mass is 56kg, find the mass of Amanda.
**Editorial note for this self-study exercise:** The comparison is between the two combined masses. Enter Amanda’s mass in kilograms as a number.
**Editorial note for this self-study exercise:** The comparison is between the two combined masses. Enter Amanda’s mass in kilograms as a number.