✓ Board-verified↻ asked 3×
Mathematics · 2023 · 1 mark
CBSE 2023 · Region 5 · Set 1 · Q20
Assertion $\displaystyle (A)$ : The number $\displaystyle 5^{\mathrm{n}}$ cannot end with the digit $\displaystyle 0$, where n is a natural number.
Reason (R): Prime factorisation of $\displaystyle 5$ has only two factors, $\displaystyle 1$ and 5.
Official answer
From CBSE’s own marking scheme for this paper.
(C)
Assertion (A) is true, but Reason (R) is false.
More from Real Numbers
- (1+√3)^2-(1-√3)^2 is:2025 · asked 3×
- The probability for a randomly selected number out of 1,2,3,4, …, 25 to be a composite number is:2026 · asked 3×
- If x is the LCM of 4,6, 8 and y is the LCM of 3,5, 7 and p is the LCM of x and y, then which of the following…2025 · asked 3×
- Assertion: The perimeter of ABC is a rational number. Reason (R): The sum of the squares of two rational…2023 · asked 3×
- Prove that √3 is an irrational number. OR State true or false for each of the following statements and…2025 · asked 3×
- Prove that √5 is an irrational number.2024 · asked 3×
- The natural number 1 is:2026 · asked 3×
- √0.4 is a/an2025 · asked 3×
CBSE Class 10 Mathematics past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.