There are 49 students in the fifth grade participating in a mathematics competition, and the scores are all integers, and the full score is 100 points. It is known that the grades of 3 students are below 60, and the grades of the rest are between 75 and 95. Ask at least how many students have the same grades.
五年级有49名学生参加一次数学竞赛，成绩都是整数，满分是100分．已知3名学生的成绩在60分以下，其余学生的成绩均在75～95分之间，问至少有多少名学生的成绩相同．
<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<result>3</result>