Question
PSLE
The average height of a group of children was 134.2 cm. When Mr Leow measured and recorded the height of these children, he wrongly recorded one child's height as 184 cm when it should have been 148 cm. As a result, Mr Leow calculated the average height as 140.2 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 134.2 cm. When Mr Leow measured and recorded the height of these children, he wrongly recorded one child's height as 184 cm when it should have been 148 cm. As a result, Mr Leow calculated the average height as 140.2 cm. How many children were there in the group?