Question
PSLE
The average height of a group of boys was 119.9 cm. When Mr Lim measured and recorded the height of these boys, he wrongly recorded one child's height as 160 cm when it should have been 106 cm. As a result, Mr Lim calculated the average height as 125.9 cm. How many boys were there in the group?
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PSLE
The average height of a group of boys was 119.9 cm. When Mr Lim measured and recorded the height of these boys, he wrongly recorded one child's height as 160 cm when it should have been 106 cm. As a result, Mr Lim calculated the average height as 125.9 cm. How many boys were there in the group?