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primary 6 Maths Data analysis Singapore

pls help

Date Posted: 4 years ago

(Sum+17) /x =83
= sum +17=83x ....(1)

(sum+9) / x= 81
= sum+9 = 81x....(2)

(1)-(2),
8 = 2x
x = 4

Ans. 4 person

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Date Posted: 4 years ago

Azzalysha

4 years ago

Thank you