CUET Mathematics - Which of the following are correct? (A) If a ≡ b(mod n), then -a ≡ -b (mod n) (B) If a + b = c, then a(mod n) + b(mod n) ≡ (a + b + c)(mod n). (C) If a ≡ b (mod n), then ka ≡ kb(mod n), ∀ k ∈ I. (D) If a ≡ b (mod n), then (a + k) ≡ (b + k)(mod n), ∀ k ∈ I. Choose the correct answer from the options given below: | PYQs + Solutions

CUET Mathematics 2025 16 May Shift 1

Algebra

Medium

applied

(A), (B) and (D) only

(A), (B) and (C) only

(A), (C) and (D) only

(B), (C) and (D) only

✅ Correct Option: 3

Related questions:

CUET Mathematics 2024 Slot 1

If the function $f: \mathbb{N} \rightarrow \mathbb{N}$ is defined as $f(n)=\left\{\begin{array}{ll}n-1, & \text { if } n \text { is even } \\ n+1, & \text { if } n \text { is odd }\end{array}\right.$ , then

(A) f is injective

(B) f is into

(D) f is invertible

3 June Shift 2

The relation R on the set of real numbers defined by $R = \{(a, b): a \leq b^2\}$ is

16 May Shift 1

Match List-I with List-II

Where ℝ is set of real numbers

List-I	List-II
(A) f: ℝ → ℝ s.t f(x) = x⁴ is	(I) one-one, Into
(B) f: ℝ → [0, ∞) s.t f(x) = x⁴ is	(II) many-one, into
(C) f: [0, ∞) → ℝ s.t f(x) = x⁴ is	(III) one-one, onto
(D) f: [0, ∞) → [0, ∞) s.t f(x) = x⁴ is	(IV) many-one, onto

Choose the correct answer from the options given below:

CUET Mathematics 2025 16 May Shift 1 PYQs

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