Question

Mary has 37 sheep in her flock. If she makes one group of 7 sheep, how many equal groups of 3 sheep can be made with the remaining sheep? A 10 B. 30 C. 8 D. 21

Answer 1

If she makes one group of 7 sheeps, then she has 30 sheep left to make the rest of the groups. To know how many groups of 3 sheeps she can make with those 30 sheeps, we just have to divide 30 by 3:

$30\colon3=10$

Mary can make 10 groups of 3 sheeps (option A)