The average height of four students is 160 cm. If three students have heights of 155 cm, 162 cm, and 158 cm, find the height of the fourth student. What is the answer in cm?
Question
The average height of four students is 160 cm. If three students have heights of 155 cm, 162 cm, and 158 cm, find the height of the fourth student. What is the answer in cm?
Solution
To find the height of the fourth student, we first need to find the total height of all four students. We do this by multiplying the average height by the number of students.
So, 160 cm (average height) * 4 (number of students) = 640 cm (total height of all students)
Next, we subtract the heights of the first three students from the total height.
So, 640 cm (total height) - 155 cm (height of first student) - 162 cm (height of second student) - 158 cm (height of third student) = 165 cm
Therefore, the height of the fourth student is 165 cm.
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