See Kahwai's answer to Hana S.Kumar's Primary 6 Maths Measurement Singapore question

Kahwai's answer to Hana S.Kumar's Primary 6 Maths Measurement Singapore question.

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Average is 140 for 9 numbers

Then total is
9 x 140

And one number is 180

Then the the remaining is 9 x 140 - 180

And average of eight is
(9 x 140 -180) /8

Date Posted: 4 years ago

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Hana S.Kumar

4 years ago

thanks