Question
P6.DA.NK.21060938-A2
PSLE
The average height of a group of girls was 137.4 cm. When Mr Chiam measured and recorded the height of these girls, he wrongly recorded one child's height as 137 cm when it should have been 173 cm. As a result, Mr Chiam calculated the average height as 134.4 cm. How many girls were there in the group?
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Primary 6 DATA ANALYSIS P6.DA.NK.21060938

30 Apr 2024, 02:33 AM

PSLE
The average height of a group of girls was 137.4 cm. When Mr Chiam measured and recorded the height of these girls, he wrongly recorded one child's height as 137 cm when it should have been 173 cm. As a result, Mr Chiam calculated the average height as 134.4 cm. How many girls were there in the group?
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