Question
The average height of some pupils is 140 cm. There is an equal number of boys and girls. The average height of the boys is 134 cm. Find the average height of the girls. Give your answer in cm.
2 m

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The average height of some pupils is 140 cm. There is an equal number of boys and girls. The average height of the boys is 134 cm. Find the average height of the girls. Give your answer in cm.