Answer: Option B -25 bags.
consider - Round each amount to the nearest ten to find a reasonable estimate for the number of bags of marbles
We have been given that
No. of kids =47
After rounded its nearest ten then
No. of kids =50
Same as no. of marbles in a bag = 24
After rounded its nearest ten = 20
No. of each player have marbles = 10
So, using the given information and calculating we have:
Total No. of marbles = 50× 10 = 500 marbles
We know that the total number of marbles needed is 500 marbles, so, calculating how many bags will Nhia have to buy, we have:
No. of bags = (Total no. of marbles / marbles per bag)
No. of bags = 500/20
No. of bags =25
Hence, Nhia will have to buy 25 bags of marbles.