Question

the mean weight of 4 members of a family is 60 kg three of them @ 56 kg 60 kg and 72 kg respectively find the weight of the fourth member

Answer 1

Answer:

Step-by-step explanation:

Mean weight =60

3 have :52,60,72

Mean weight = (52+60+72+x)÷4

Where x is the weight of the fourth person.

= (184+x)÷4

=46+x÷4 = 60

=x÷4=60-46 = 14

=x = 14×4 = 52