Question

Average age of
people in room A
and room B is 35
and 30 years,
respectively. If the
overall average age
of people in both the
rooms is 31 years,
and there are 3 more
people in room
B
than in room A, how
many people are
there in room B?​

Answer 1

Answer:

4

Step-by-step explanation:

(35×1)+(30×4)=5×31

4-1=3

Answer 2

Answer:

3

Step-by-step explanation:

Average age of

people in room A

and room B is 35

and 30 years,

respectively. If the

overall average age

of people in both the

rooms is 31 years,

and there are 3 more

people in room

B

than in room A, how

many people are

there in room B?