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 161-170 of 604 questions.
What is the numerical coefficient in \(9x^2y\)?
B. (9)
संख्यात्मक गुणांक वह संख्या है जो चर भाग से गुणा होती है। \(9x^2y\) में यह संख्या (9) है। / The numerical coefficient is the number multiplying the variable part. In \(9x^2y\), this number is (9).
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What is obtained after simplifying \(4r^2-6r^2+5r\)?
B. \(-2r^2+5r\)
\(4r^2\) और \(-6r^2\) समान पद हैं और उनका योग \(-2r^2\) है। (5r) अलग पद रहता है। / \(4r^2\) and \(-6r^2\) are like terms and their sum is \(-2r^2\). The term (5r) remains separate.
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Which pair consists of like terms?
A. (7ab) और (-2ab)(7ab) and (-2ab)
(7ab) और (-2ab) में चर भाग (ab) समान है। गुणांक अलग हो सकते हैं। / (7ab) and (-2ab) have the same variable part (ab). Coefficients may be different.
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If (t=3), what is the value of \(2t^2-t\)?
C. (15)
(2t-2-t=2\(3^2\)-3=18-3=15)। पहले घात फिर गुणा और फिर घटाव करें। / (2t-2-t=2\(3^2\)-3=18-3=15). Do powers first, then multiplication, then subtraction.
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What is obtained after simplifying (5(x+2)-2(x-1))?
A. (3x+12)
खोलने पर (5x+10-2x+2) मिलता है। समान पद मिलाकर (3x+12) बनेगा। / Expanding gives (5x+10-2x+2). Combining like terms gives (3x+12).
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What is the highest power in the expression \(2x^3-5x+1\)?
C. (3)
सबसे बड़ी घात \(x^3\) में (3) है। उच्चतम घात पहचानना बहुपद की समझ में मदद करता है। / The highest power is (3) in \(x^3\). Identifying the highest power helps in understanding polynomials.
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Which expression represents (5) more than (2y)?
D. (2y+5)
(5) अधिक का अर्थ दिए गए व्यंजक में (5) जोड़ना है। इसलिए (2y+5) सही है। / (5) more means adding (5) to the given expression. So (2y+5) is correct.
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If (p=-3), what is the value of \(p^2+2p\)?
A. (3)
((-3)2+2(-3)=9-6=3)। ऋणात्मक संख्या का वर्ग धनात्मक होता है। / ((-3)2+2(-3)=9-6=3). The square of a negative number is positive.
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What is obtained after simplifying \(8a^2b-3a^2b+4ab\)?
A. \(5a^2b+4ab\)
\(8a^2b\) और \(-3a^2b\) समान पद हैं। (4ab) की घातें अलग हैं इसलिए वह अलग रहेगा। / \(8a^2b\) and \(-3a^2b\) are like terms. (4ab) has different powers, so it remains separate.
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Which expression represents the difference between the square of (x) and three times (x)?
B. \(x^2-3x\)
(x) का वर्ग \(x^2\) है और (x) का तीन गुना (3x) है। अंतर के लिए \(x^2-3x\) लिखेंगे। / The square of (x) is \(x^2\) and three times (x) is (3x). The difference is written as \(x^2-3x\).
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