Question
PSLE
The average height of a group of children was 123.8 cm. When Mr Ee measured and recorded the height of these children, he wrongly recorded one child's height as 180 cm when it should have been 108 cm. As a result, Mr Ee calculated the average height as 131.8 cm. How many children were there in the group?
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PSLE
The average height of a group of children was 123.8 cm. When Mr Ee measured and recorded the height of these children, he wrongly recorded one child's height as 180 cm when it should have been 108 cm. As a result, Mr Ee calculated the average height as 131.8 cm. How many children were there in the group?