Question
P6.DA.NK.21060938-A2
PSLE
The average height of a group of girls was 157.6 cm. When Mr Ma measured and recorded the height of these girls, he wrongly recorded one child's height as 179 cm when it should have been 197 cm. As a result, Mr Ma calculated the average height as 154.6 cm. How many girls were there in the group?
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Primary 6 DATA ANALYSIS P6.DA.NK.21060938

26 Jun 2024, 07:50 AM

PSLE
The average height of a group of girls was 157.6 cm. When Mr Ma measured and recorded the height of these girls, he wrongly recorded one child's height as 179 cm when it should have been 197 cm. As a result, Mr Ma calculated the average height as 154.6 cm. How many girls were there in the group?
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