【备考每日练】GMAT数学真题精选实例讲解（第九练）

小站整理2015-05-22 14:52:25

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摘要：GMAT备考，除了背背背，更重要的就是练练练！通过练习，巩固知识，熟练技巧，最终才能在GMAT考试中发挥出色。小编为大家精心准备了GMAT考试各类题型的练习题和答案解析，帮助大家每日一练，为考试做好准备。

GMAT备考，除了背背背，更重要的就是练练练!通过练习，巩固知识，熟练技巧，最终才能在GMAT考试中发挥出色，取得好成绩，所以练习的重要性不言而喻。因此，小编为大家精心准备了GMAT考试各类题型的练习题和答案解析，帮助大家每日一练，为考试做好准备。一起来看今天的题目。

今日练习题为数学题，题目如下

The figure shown represents a board with 4 rows of pegs, and at the bottom of the board are 4 cells numbered 1 to 4. Whenever the ball shown passes through the opening between two adjacent pegs in the same row, it will hit the peg directly beneath the opening. The ball then has the probability 1/2 of passing through the opening immediately to the left of that peg and probability 1/2 of passing through the opening immediately to the right. What is the probability that when the ball passes through the first two pegs at the top it will end in Cell 2?