Search questions
Choose which content to search, then combine terms with AND or OR.
Class 10 · Mathematics · Easy
→What is the HCF of 24 and 36?
Class 11 · Mathematics · Medium
→What is the highest power of 10 in 40!?
Class 11 · Mathematics · Hard
→What is the smallest positive integer n for which n! is divisible by 2^9 × 3^3 × 5^2?
Class 9 · Mathematics · Expert
→Which of the following rational numbers will have a non-terminating recurring decimal expansion?
Class 9 · Mathematics · Expert
→Ravi says that if, in simplest form, a fraction has only 2 and 5 as prime factors of its denominator, then its decimal expansion terminates. Which of the following fractions is an example supporting his statement?
Class 9 · Mathematics · Expert
→Which option is correct about the decimal expansion of \(\frac{13}{2^2\times5\times7}\)?
Class 9 · Mathematics · Expert
→Which of the following rational numbers has a terminating decimal expansion?
Class 9 · Mathematics · Expert
→Why is the decimal expansion of \(\frac{5}{6}\) not terminating?
Class 9 · Mathematics · Expert
→If p/q is a rational number and p and q are coprime, when will its decimal expansion terminate?
Class 9 · Mathematics · Expert
→Which of the following rational numbers will have a terminating decimal expansion?
Class 9 · Mathematics · Expert
→Which statement is correct about the decimal expansion of \(\frac{13}{40}\)?
Class 9 · Mathematics · Hard
→In the proof of √3, 3 | h² implies 3 | h. Which broader principle does this illustrate?
Class 9 · Mathematics · Expert
→Which of the following numbers can be proved irrational using its prime factorisation?
Class 9 · Mathematics · Expert
→If (h) is not divisible by (3) and (h^2=3k^2), what inconsistency appears?
Class 9 · Mathematics · Hard
→What problem appears when a² = 2b² is viewed through prime factors in the proof of √2?
Class 9 · Mathematics · Hard
→In a proof that \(\sqrt{3}\) is irrational, a student writes: “If \(3\mid p^2\), we can conclude only that \(p^2=3k\).” What is the correct correction needed to continue the argument?
Class 9 · Mathematics · Hard
→Which idea about the exponents of prime factors explains the irrationality of √2?
Class 9 · Mathematics · Hard
→For a positive integer \(n\), which statement correctly identifies when \(\sqrt{n}\) is irrational?
Class 9 · Mathematics · Medium
→If a prime number has an odd exponent in the prime factorisation of a number, what can be concluded about the square root of that number?
Class 9 · Mathematics · Expert
→