June 27, 2020
The average height of 16 students is 142 cm. If the height of the teacher is included, the average height increases by 1 cm. The height of the teacher is
A
B
C
D
Answer is : 159 cm
Explanation:
Height of teacher = 143 × 17 − 142 × 16
= 159 cm
Akilesh Kharvi ? answered May 27 '2017 at 12:34 replay
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