If the 'average man ' has a mass of 77kg, find, approximately, how many men together have a mass of 1 tonne
To find out how many men of average mass would approximate a mass of 1 tonne, we divide the total mass of 1 tonne by the average mass of one man.
1 tonne is equivalent to 1000 kg (since 1 tonne = 1000 kilograms).
Given that the average mass of one man is 77 kg, we divide 1000 kg by 77 kg/man:
1000 kg / 77 kg/man ≈ 12.987012987012987
Since you can't have a fraction of a man, we round to the nearest whole number. So, approximately 13 men of average mass would have a combined mass of about 1 tonne.