Question
P6.DA.NK.21060938-A2
PSLE
The average height of a group of pupils was 131.9 cm. When Mr Chiam measured and recorded the height of these pupils, he wrongly recorded one child's height as 124 cm when it should have been 142 cm. As a result, Mr Chiam calculated the average height as 128.9 cm. How many pupils were there in the group?
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STUDENT

Primary 6 DATA ANALYSIS P6.DA.NK.21060938

02 May 2024, 05:50 PM

PSLE
The average height of a group of pupils was 131.9 cm. When Mr Chiam measured and recorded the height of these pupils, he wrongly recorded one child's height as 124 cm when it should have been 142 cm. As a result, Mr Chiam calculated the average height as 128.9 cm. How many pupils were there in the group?
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