Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.
Difficulty select karke sirf is topic ke focused MCQs practice karein. Score, timer aur explanations student-friendly flow me milenge.
Showing 411-420 of 600 questions.
Which decimal expansion represents a rational number?
C. \(0.6666\ldots\)
आवर्ती दशमलव परिमेय होते हैं। शेष विकल्प अनावर्ती हैं। / Repeating decimals are rational. The others are non repeating.
Login to save your score, XP, coins and progress.
What is the value of \(\sqrt{45}-\sqrt{5}\)?
A. \(2\sqrt{5}\)
\(\sqrt{45}=3\sqrt{5}\) इसलिए उत्तर \(2\sqrt{5}\) है। वर्ग गुणनखंड करें। / \(\sqrt{45}=3\sqrt{5}\) so the result is \(2\sqrt{5}\). Factor perfect squares.
Login to save your score, XP, coins and progress.
If \(x=\sqrt{11}\) then (x) is
B. अपरिमेयIrrational
11 पूर्ण वर्ग नहीं है इसलिए \(\sqrt{11}\) अपरिमेय है। पूर्ण वर्ग पहचानें। / 11 is not a perfect square so \(\sqrt{11}\) is irrational. Check perfect squares.
Login to save your score, XP, coins and progress.
Which pair is both irrational?
B. \(\sqrt{3},\sqrt{5}\)
\(\sqrt{3}\) और \(\sqrt{5}\) दोनों अपरिमेय हैं। पूर्ण वर्गों से सावधान रहें। / \(\sqrt{3}\) and \(\sqrt{5}\) are both irrational. Watch for perfect squares.
Login to save your score, XP, coins and progress.
C. हर वास्तविक संख्या परिमेय हैEvery real number is rational
सभी वास्तविक संख्याएँ परिमेय नहीं होतीं। अपरिमेय भी वास्तविक हैं। / Not all real numbers are rational. Irrational numbers are also real.
Login to save your score, XP, coins and progress.
What is the value of \(\frac{\sqrt{32}}{\sqrt{2}}\)?
B. 4
यह \(\sqrt{16}=4\) के बराबर है। मूलों के भाग का नियम लगाएँ। / It equals \(\sqrt{16}=4\). Apply the quotient rule of radicals.
Login to save your score, XP, coins and progress.
If \(x=0.454545\ldots\) then (x) is
C. परिमेयRational
यह आवर्ती दशमलव है इसलिए परिमेय है। दोहराव पहचानें। / It is a repeating decimal, hence rational. Identify repetition.
Login to save your score, XP, coins and progress.
What is the simplified form of \(\sqrt{75}\)?
A. \(5\sqrt{3}\)
\(75=25\times3\) इसलिए \(\sqrt{75}=5\sqrt{3}\)। पूर्ण वर्ग अलग करें। / \(75=25\times3\) so \(\sqrt{75}=5\sqrt{3}\). Extract perfect squares.
Login to save your score, XP, coins and progress.
C. \sqrt{13}
\(\sqrt{13}\) अपरिमेय है क्योंकि 13 पूर्ण वर्ग नहीं है। / \(\sqrt{13}\) is irrational because 13 is not a perfect square.
Login to save your score, XP, coins and progress.
What is the value of \(\sqrt{7}+\sqrt{7}\)?
C. \(2\sqrt{7}\)
समान मूलों के गुणांक जोड़े जाते हैं। उत्तर \(2\sqrt{7}\) है। / Add coefficients of like surds. The result is \(2\sqrt{7}\).
Login to save your score, XP, coins and progress.
Use Google login or mobile OTP. Admin can block users and control login providers.