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Examples
Last updated at Jan. 12, 2022 by Teachoo
Example 1 Solve 30 x < 200 when (i) x is a natural number 30 x < 200 π₯ < 200/30 π₯ < 20/3 π < 6.66 Since x is a natural number i.e. 1, 2, 3, 4, 5, 6, 7,β¦. We need to find values of x which is less than or equal to 6 i.e. x can be {1, 2, 3, 4, 5, 6} Example 1 Solve 30 x < 200 when (ii) x is an integer Now, π < 6.66 Since x is an integer i.e. β¦β¦,β3, β2, β1, 0, 1, 2, 3β¦. We need to find values of x which is less than or equal 6 i.e. x can be β¦β¦, β3, β2, β1, 0, 1, 2, 3, 4, 5, 6 = {β¦β¦,β3, β2, β1, 0, 1, 2, 3, 4, 5, 6}