May raked 40% of the

yard and filled up 12

bags of leaves. How

many bags will she need

to rake the whole yard?

Answer: 30 bags

Step-by-step explanation:

she raked 40 % of the yard to fill up 12 bags, by proportion:

40% = 12bags

1% = 12/40 bags,

Then 60 % = 12/40 x 60

= 18

Therefore the total bags needed to fill the whole yards will be

18 + 12

= 30