ambikachaulagain123 ambikachaulagain123

29-11-2021
Mathematics

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a+1, 2a-1 ,a+7 and 3a+4 are in ascending order. if the median is 17. find the value of a.

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ranoo4213 ranoo4213

29-11-2021

Since we have an even amount of numbers here, the median is going to be the average of the two middle values, in this case:

(2a-1+a+7)/2 = 17

(3a +6)/2 = 17

3a + 6 = 34

3a = 28

a = 9[tex]\frac{1}{3}[/tex]

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