The mean of the height of six girls is 1...

The mean of the height of six girls is `148` cm. if the individual heights of five of them are `150cm, 146 cm, 142 cm` and `145cm`, find the height of the sixth girl.

A

`161` cm

B

`151` cm

C

`171`

D

`181`

Text Solution

Verified by Experts

The correct Answer is:

B

Mean of the height s of six girls = 148 cm.
Sum of the heights of six girls =` ( 148xx 6) cm ` = 888 cm
Sum of the heights of the five grils
= (150 +154+146+142+145)cm = 737 cm
Height of the sixth girl = (888 -737) cm = 151 cm
Hence, the height of the sixth girl is `151` cm .

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