Question
P6.DA.NK.21060938-A1
PSLE
The average height of a group of pupils was 137.7 cm. When Mr Lu measured and recorded the height of these pupils, he wrongly recorded one child's height as 192 cm when it should have been 129 cm. As a result, Mr Lu calculated the average height as 144.7 cm. How many pupils were there in the group?
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Primary 6 DATA ANALYSIS P6.DA.NK.21060938

28 Jun 2024, 07:12 PM

PSLE
The average height of a group of pupils was 137.7 cm. When Mr Lu measured and recorded the height of these pupils, he wrongly recorded one child's height as 192 cm when it should have been 129 cm. As a result, Mr Lu calculated the average height as 144.7 cm. How many pupils were there in the group?
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