Question

In a group, Average Weight of four persons in group is
40 kg and one person joined the same group and now
average weight of 5 persons is 50. What will be the weight of
5th person?
a. 90
b. 80
C. 70
d. 60
​

Answer 1

Answer:

c.70.................

Answer 2

Answer:

a.90

Step-by-step explanation:

So weight of 4 persons is 40×4=160 kg

weight of 5 persons is 50×5=250 kg

So weight of the 5th person is 250kg - 160kg= 90 kg

Hope it helps you