Solve – 12x > 30, when
(i) x is a natural number. (ii) x is an integer.
It is given in the question that,
– 12x > 30
Dividing the inequality by -12 on both sides we get,
(i) When x is a natural integer.
It can be clearly observed that there is no natural number less thanbecause- is a negative number and natural numbers are positive numbers.
∴there would be no solution of the given inequality when x is a natural number.
(ii) When x is an integer
It can be clearly observed that the integer number less thanare…, -5, -4, -3
Thus, solution of– 12x > 30is …,-5, -4, -3, when x is an integer.
∴ {…, -5, -4, -3} is the solution set.