Question
PSLE
The average height of a group of children was 132.8 cm. When Mr Song measured and recorded the height of these children, he wrongly recorded one child's height as 150 cm when it should have been 105 cm. As a result, Mr Song calculated the average height as 135.8 cm. How many children were there in the group?
2 m

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PSLE
The average height of a group of children was 132.8 cm. When Mr Song measured and recorded the height of these children, he wrongly recorded one child's height as 150 cm when it should have been 105 cm. As a result, Mr Song calculated the average height as 135.8 cm. How many children were there in the group?