You need to bake some banana bread and some zucchini bread for a fund raiser at school. You plan to bake at least 4 and at most 12 loaves of bread. You need at least twice as many loaves of banana bread as zucchini bread.

You must bake 2-4 loaves of zucchini bread and twice the chosen number for banana bread.

For example, if you bake 3 loaves of zucchini bread you must bake 6 loaves of banana bread. 6 + 3 = 9, which is greater than four and less than 12.