Average Ques 2
Question-
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
(1) $156 cm$
(2) $159 cm$
(3) $158 cm$
(4) $157 cm$
(5) $159.5 cm$
(Corporation Bank Specialist Officer (Marketing) Exam. 22.02.2014)
Show Answer
Correct Answer: (2)
Solution: (2)
Tricky approach
Height of teacher $=(142+17) cm$
$=159 cm$