Question
P6.DA.NK.21060938-A1
PSLE
The average height of a group of girls was 119.9 cm. When Mr Lu measured and recorded the height of these girls, he wrongly recorded one child's height as 140 cm when it should have been 104 cm. As a result, Mr Lu calculated the average height as 122.9 cm. How many girls were there in the group?
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Primary 6 DATA ANALYSIS P6.DA.NK.21060938

01 Jul 2024, 12:44 AM

PSLE
The average height of a group of girls was 119.9 cm. When Mr Lu measured and recorded the height of these girls, he wrongly recorded one child's height as 140 cm when it should have been 104 cm. As a result, Mr Lu calculated the average height as 122.9 cm. How many girls were there in the group?
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