Question

the mean mass of 5 men is 76kg. the masses of 4 of the men are 72kg, 74kg, 75kg, and 81kg. what is the mass of the 5th man.

Answer 1

Answer:

Step-by-step explanation:

The mean of mass of 5 men =76 kg

So sum of the mass of 5 men=5×76=380

The masses of 4 men are 72kg,74kg,75 kg,81 kg

So sum of the masses of 4 men

=72+74+74+81=301 kg

Thus, the mass of 5th man=380-301=79 kg.(answer)