Nina was planning on taking her children to a funfair this weekend but as the weather has been so bad she has changed her plans and is now going to the cinema instead.
There are 3 local cinemas X, Y and Z.
The mean number of seats per cinema is 380
There are 350 seats in cinema X.
There are 250 seats in cinema Y.
Work out the number of seats in cinema Z.
Answer:
3×380 = 1140 = seats in total of all 3 cinemas
1140 – 350 – 250 = 540 seats in cinema Z.