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Question

Question

Alice80

S2 Mathematics

Question post on Sat, 28/09/2019 5:42pm

**Dear Teachers, please help with part c. Thank you.

Answer

bbcxd · Answer 1 · Post on Sun, 29/09/2019 8:04pm

Median is the middle number in a sorted list of numbers.

Hence if the median is 2 and to the maximum of x in value, below is how you should see

0	1	2	2	3
2x+1	7	4	1	3x+2

∴ 2x +1 + 7 + 4 = 3x + 2

3x – 2x = 1+7+4-2

x = 10

Alice80 · Answer 2 · Post on Mon, 30/09/2019 1:46pm

Alice80 Post on Mon, 30/09/2019 1:46pm

Thank bbcxd, but how do we know we must separate 4 and 1 out from 5?

bbcxd · Answer 3 · Post on Mon, 30/09/2019 8:08pm

Because the medium is 2 and to the maximum of x, it can only be the last 2 just before 3. Hence, we separate the 5 of 2 into 4 and 1. Hope this make sense.