17 9 10 x 35 90 find the missing number
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Answered by
3
Answer:
hiii
your answer is here !
Step-by-step explanation:
(17+1)(1/2)=9
(9+1)(2/2)=10
(10+1)(3/2)=16.5
16.5 is the ans ..
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Answered by
2
Step-by-step explanation:
By using arithmetic mean...
17 + 9 + 10 + x + 35 + 90÷6 = 0
161+x÷6 = 0
161+ x = 6
x= -155
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