Question

average of a family with 5 members is 150 the average of first four members are 150,151,152,153, what is the average of the last one ​

Answer 1

Answer:

144 is the weight of 5th member

Step-by-step explanation:

We have an average where 4 values are given,

Let us assume weight of 5th memeber be X and do the average

Total Weight÷No. of people = Average Weight

(150+151+152+153+X)÷5 = 150 (Given)

Now cross multiplication of 5 with 150 in RHS will give us 750

In LHS, it will be sum up to 606+X

Now we will equate them and get the value of X

606+X=750

750-606=X

144=X

We will get the weight of 5th member

Now we can check (150+151+152+153+144)÷5=150