A science teacher has 0.4 liter of seawater. She gives each of her 22 students a container and a 5- milliliter spoon. She then a
sks her students to put 2 spoonfuls of seawater into their containers. How many milliliter a of seawater will be left after all 22students have filled their containers? A. 70
B. 180
C. 290
D. 780
0.4L = 400ml Each student effectively adds 10ml of water so 22 students are adding 10ml of water each. Therefore, 22 x 10 = 220ml total in all the containers added by all 22 students Water left = 400 - 220 = 180
