Answer:
<h2><em><u>12 cups</u></em></h2>
Explanation:
<em><u>Given</u></em><em><u>, </u></em>
No. of cups of water saved by 1 student = 3
<em><u>Therefore</u></em><em><u>, </u></em>
No. of cups of water saved by 4 students = 3 × 4
= <em><u>12 (Ans)</u></em>
Sorry I don't understand ur LaGuardia