Total height = number of students × average height.<br><br>
• Total height of 15 students = 15 × 148 = 2220 cm<br>
• Total height of remaining 12 = 12 × 145 = 1740 cm<br>
• Total height of 3 removed = 2220 − 1740 = 480 cm<br>
• Average of 3 removed = 480 ÷ 3 = 160 cm<br><br>
Final Answer: 160 cm