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If a student is selected at random from Learngood Elementary, what is the probability that the student will be a boy?

(1) There are 480 students at Learngood.

(2) At Learngood, the ratio of boys to girls is 7 : 5
  • AStatement 1 ALONE is sufficient to answer the question, but statement 2 alone is NOT sufficient.
  • BStatement 2 ALONE is sufficient to answer the question, but statement 1 alone is NOT sufficient.
  • CBOTH statements 1 and 2 TOGETHER are sufficient to answer the question, but NEITHER statement ALONE is sufficient.
  • DEach statement ALONE is sufficient to answer the question.
  • EStatement 1 and 2 TOGETHER are NOT sufficient to answer the question.
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正确答案: B
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