Question

Susie has four children with the following masses: Aron=38.2 kg, Maria=26.9 kg, Tanya=50.4 kg, and Andrea=44.6 kg. What is the average mass of her children?

a) 40.25 kg
b) 40.02 kg
c) 40.52 kg
d) 39.88 kg

Answer 1

ans 40.02 kg(b)

as 38.2+26.9+50.4+44.6= 160.1

and 160.1/4 = 40.025

so average mass equals to 40.02 kg

Answer 2

The average mass of Susie's four children is calculated by adding their individual masses and dividing by four. The result is 40.025 kg, which is option (a) 40.25 kg after rounding, although the options might contain a typo.

Step-by-step explanation:

To find the average mass of Susie's four children, we add the masses of all children and divide by the number of children. The formula to calculate the average mass (M_avg) is:

M_avg = (M1 + M2 + M3 + M4) / 4

Plugging in the given masses:

M_avg = (38.2 kg + 26.9 kg + 50.4 kg + 44.6 kg) / 4

M_avg = (160.1 kg) / 4

M_avg = 40.025 kg

Therefore, the average mass of her children is 40.025 kg, which is closest to the option (a) 40.25 kg. It appears there is a slight typo in the options provided, as 40.025 kg should round to 40.03 kg, not 40.25 kg.