GRE考试

【单选题】The length of a rectangular kitchen floor is 3 feet more than its width. If the length of the floor is 12 feet, what is the area of the floor in square feet
A、9
B、15
C、42
D、108
E、144
网考网参考答案：D
网考网解析：
You are given that the length of the floor is 12 feet, and that the length is 3 more than the width. Set the width equal to w, and set up an equation to find the width. 3+w=12 w=9 To calculate the area, multiply the length by the width. 12×9=108 The area of the kitchen floor is 108 square feet. document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>