The average height of 35 boys in a class was calculated as 184cm.

The average height of 35 boys in a class was calculated as 184cm. It has later found that the height of one of the boys in the class was wrongly written as 166 cm whereas his actual height was 106 cm. Find the actual average height of the boys in the class (Round off your answer to two decimal places?

Quiz

Answer/Solution

182.29 cm

Steps/Work

Calculated average height of 35 boys = 184 cm.
Wrong total height of 35 boys = 184 * 35 cm. This was as a result of an actual height of 106 cm being wrongly written as 166 cm. Correct total height of 35 boys = 183 cm - (166 cm + 106 cm)/35
= 184 cm - 60 /35 cm
= 184 cm - 1.71 cm = 182.29 cm.
Answer: B

General Calculator / Auto Solver

The average height of boys in a class was calculated as cm. It has later found that the height of one of the boys in the class was wrongly written as cm whereas his actual height was cm. Find the actual average height of the boys in the class ( round off your answer to two decimal places?

We can not automatically calculate the result. Use the steps above to manually calculate the result.