solve 30 x < 200,when X is a natural number.
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Given, 30x<200
⇒3x<20
⇒x<6.67
It is given that x is a natural number, i.e. x∈N
Therefore, solution set for x includes 1,2,3,4,5,6 ...(6<6.67 and 6 is a natural number, hence it is included in the solution set).
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