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If Z\mathbb{Z} and R\mathbb{R} denote set of integers and set of real numbers respectively, then match List I with List II.

List-IList-II
(A) 5x−3≤3x+15x - 3 \leq 3x + 1, x∈Zx \in \mathbb{Z}(I) x∈(−∞,−3]x \in (-\infty, -3]
(B) 3x+17≤2(1−x)3x + 17 \leq 2(1 - x), x∈Rx \in \mathbb{R}(II) x∈(−∞,−1)x \in (-\infty, -1)
(C) 13x+17≤2(1−x)13x + 17 \leq 2(1 - x), x∈Rx \in \mathbb{R}(III) {......,−4,−3,.......,0,1}\{......, -4, -3, .......,0,1\}
(D) 2x+35−2>3(x−2)5\frac{2x + 3}{5} - 2 > \frac{3(x - 2)}{5}, x∈Zx \in \mathbb{Z}(IV) {......,−4,−3,−2}\{......, -4, -3, -2\}

Choose the correct answer from the options given below:

Solution

✅ Correct Option: 3

(A) 5x−3≤3x+15x - 3 \leq 3x + 1, where x∈Zx \in \mathbb{Z}

5x−3x≤1+35x - 3x \leq 1 + 3

2x≤42x \leq 4

x≤2x \leq 2

Since x∈Zx \in \mathbb{Z}, the solution set is {…,−4,−3,−2,−1,0,1,2}\{\ldots, -4, -3, -2, -1, 0, 1, 2\}

This matches (III)


(B) 3x+17≤2(1−x)3x + 17 \leq 2(1 - x), where x∈Rx \in \mathbb{R}

3x+17≤2−2x3x + 17 \leq 2 - 2x

3x+2x≤2−173x + 2x \leq 2 - 17

5x≤−155x \leq -15

x≤−3x \leq -3

This matches (I): x∈(−∞,−3]x \in (-\infty, -3]


(C) 13x+17≤2(1−x)13x + 17 \leq 2(1 - x), where x∈Rx \in \mathbb{R}

13x+17≤2−2x13x + 17 \leq 2 - 2x

13x+2x≤2−1713x + 2x \leq 2 - 17

15x≤−1515x \leq -15

x≤−1x \leq -1

This matches (II): x∈(−∞,−1]x \in (-\infty, -1]


(D) 2x+35−2>3(x−2)5\dfrac{2x + 3}{5} - 2 > \dfrac{3(x - 2)}{5}, where x∈Zx \in \mathbb{Z}

(2x+3)−10>3(x−2)(2x + 3) - 10 > 3(x - 2)

2x−7>3x−62x - 7 > 3x - 6

−7+6>3x−2x-7 + 6 > 3x - 2x

−1>x-1 > x

x<−1x < -1

Since x∈Zx \in \mathbb{Z} and the inequality is strict, x=−1x = -1 is not included.

The solution set is {…,−4,−3,−2}\{\ldots, -4, -3, -2\}

This matches (IV)


List-IList-II
(A)(III) {…,−4,−3,…,0,1,2}\{\ldots, -4, -3, \ldots, 0, 1, 2\}
(B)(I) x∈(−∞, −3]x \in (-\infty,\ -3]
(C)(II) x∈(−∞, −1]x \in (-\infty,\ -1]
(D)(IV) {…,−4,−3,−2}\{\ldots, -4, -3, -2\}

Correct Answer: Option 3

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