Joel Su's answer to Azzalysha's Primary 6 Maths Data Analysis Singapore question.
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(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
= sum +17=83x ....(1)
(sum+9) / x= 81
= sum+9 = 81x....(2)
(1)-(2),
8 = 2x
x = 4
Ans. 4 person
Date Posted:
4 years ago
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