Solution set of the inequality 20x≤90 when x∈N, where N is a set of natural numbers, is
{…,1,2,3,4}
{…,1,2,3,4,4.5}
{1,2,3,4,4.5}
{1,2,3,4}
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Given : 20x ≤90
x ∈N, where N is a set of natural numbers
To Find : Solution Set
Solution:
20x ≤90
=> 2x ≤ 9
=> x ≤ 9 /2
x ∈N, where N is a set of natural numbers
=> x = 1 , 2 ,3 , 4
{ 1, 2 , 3 , 4} is solution set for 20x ≤90
x ∈N, where N is a set of natural numbers
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