The sum of two consecutive positive numbers is 10 then the smallest one is ……………….. 

A) 6 

B) 7 

C) 9 

D) none


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Correct option is (D) none

Let consecutive numbers are x & x+1.

\(\therefore\) x + (x+1) = 10

\(\Rightarrow\) 2x = 10 - 1 = 9

\(\Rightarrow\) x = \(\frac92.\)

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