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The graph shows the number of families and the number of chicken in each family in a block of flats.

(a) How many children are there in the whole block of flats?

(b) If 1/2 of the families who have at least two children move out of the block of flats, how many children are there left in the block of flats?

 Mar 2, 2022
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a)  11 x 0   +   12 x 1   +   31 x 2   +   26 x 3   =   ...

 

b)  11 x 0   +   12 x 1   +   31 x 2 / 2   +   26 x 3 / 2   =   ...

 Mar 2, 2022

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