Question

In a classroom of 45 students, the average height is 150
cm. One student of height 146 cm leaves, and 3 new students with an average height of 154 cm join. When the teacher is also included, the average height becomes 151
cm. What is the height of the teacher?

A 178 cm
B 182 cm
C 180 cm
D 176 cm
E 174 cm
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