Question

The average height of three sisters is 150 cm. If the height of two sisters is 153 cm. and 150 cm. respectively find the height of third sister.​

Answer 1

hey mate

Answer:

147 cm.............

Answer 2

Avg. Height = 150 cm

Height of 2 sisters = 153 cm , 150 cm

Let height of third sister = x cm

AVG. = Sum of (1+2+3)/3

150 = 153+150+x/3

450 = 303 + x

147 cm = x

Therefore height of third sister = 147 cm

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