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The average height of 34 students of a school is 150 cm. If the height of the teacher is included, the average rises by 1 cm. Find the height of the teacher.
  • a)
    195 cm
  • b)
    185 cm
  • c)
    158 cm
  • d)
    180 cm
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The average height of 34 students of a school is 150 cm. If the height...
et S34 be the sum of the heights of students
S35 be the sum of the heights of students + teacher
As per problem,
S34 = 150 X 34 = 5100
S35 = 151 X 35 = 5285
Height of the teacher = 5285 – 5100
= 185 cm
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The average height of 34 students of a school is 150 cm. If the height of the teacher is included, the average rises by 1 cm. Find the height of the teacher.a)195 cmb)185 cmc)158 cmd)180 cmCorrect answer is option 'B'. Can you explain this answer?
Question Description
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