Teaching KVS Junior Secretariat Assistant (LDC) Mock Test 2022 Quantitative Aptitude Average

The average height of 20 students of class 8 is 152 cm and the average height of 15 students of class 9 is 168 cm. What is the average height (to the nearest cm) of the students of both classes?

1
159
2
160
3
157
4
158
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