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Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class


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Example 1 Solve 30 x < 200 when (i) x is a natural number 30 x < 200 𝑥 < 200/30 𝑥 < 20/3 𝒙 < 6.66 Since x is a natural number i.e. 1, 2, 3, 4, 5, 6, 7,…. 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, 𝒙 < 6.66 Since x is an integer i.e. ……,−3, −2, −1, 0, 1, 2, 3…. We need to find values of x which is less than or equal 6 i.e. x can be ……, −3, −2, −1, 0, 1, 2, 3, 4, 5, 6 = {……,−3, −2, −1, 0, 1, 2, 3, 4, 5, 6}

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.