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 81-90 of 600 questions.
What is the simplified form of (10x-4x)?
A. (6x)
समान पदों में गुणांक घटते हैं इसलिए (10x-4x=6x)। समान पद पहचानना पहला कदम है। / For like terms, coefficients are subtracted, so (10x-4x=6x). Identifying like terms is the first step.
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What is the product of \(5x\cdot4x^3\)?
C. \(20x^4\)
गुणांक \(5\cdot4=20\) और \(x\cdot x^3=x^4\) है। इसलिए उत्तर \(20x^4\) है। / The coefficients give \(5\cdot4=20\), and \(x\cdot x^3=x^4\). Therefore the answer is \(20x^4\).
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What is the simplified form of \(\frac{24x^5}{6x^2}\) if \(x\neq0\)?
A. \(4x^3\)
गुणांक \(\frac{24}{6}=4\) और \(\frac{x^5}{x^2}=x^3\) है। इसलिए सरल रूप \(4x^3\) है। / The coefficient part is \(\frac{24}{6}=4\) and \(\frac{x^5}{x^2}=x^3\). Thus the simplified form is \(4x^3\).
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What is the expansion of (4(3x+2))?
B. (12x+8)
वितरण नियम से (4(3x+2)=12x+8)। कोष्ठक के दोनों पदों से (4) को गुणा करें। / By the distributive law, (4(3x+2)=12x+8). Multiply (4) by both terms inside the bracket.
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What is the value of \(3^2+3^3\)?
B. (36)
यहाँ जोड़ है इसलिए घातें नहीं जुड़तीं। \(3^2+3^3=9+27=36\) है। / This is addition, so exponents are not added. \(3^2+3^3=9+27=36\).
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Which law gives (m(n+p)=mn+mp)?
A. वितरण नियमDistributive law
(m) को (n) और (p) दोनों से गुणा किया गया है। इसलिए यह वितरण नियम है। / (m) is multiplied by both (n) and (p). Therefore this is the distributive law.
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Which law is shown by (x+y=y+x)?
A. क्रमविनिमेय नियमCommutative law
जोड़ में क्रम बदलने से योग नहीं बदलता। इसे क्रमविनिमेय नियम कहते हैं। / Changing the order in addition does not change the sum. This is called the commutative law.
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Which law is shown by ((x+y)+z=x+(y+z))?
A. साहचर्य नियमAssociative law
जोड़ में समूह बदलने से योग नहीं बदलता। इसे साहचर्य नियम कहते हैं। / Changing the grouping in addition does not change the sum. This is called the associative law.
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What is the value of (0.75+0.15)?
B. (0.90)
दशमलव जोड़ने पर (0.75+0.15=0.90) होता है। दशमलव बिंदु ठीक से मिलाएँ। / Adding decimals gives (0.75+0.15=0.90). Align decimal points correctly.
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What is the value of \(\frac{3}{4}+\frac{1}{8}\)?
B. \(\frac{7}{8}\)
समान हर (8) लेने पर \(\frac{3}{4}=\frac{6}{8}\) होता है। इसलिए \(\frac{6}{8}+\frac{1}{8}=\frac{7}{8}\) है। / Using common denominator (8), \(\frac{3}{4}=\frac{6}{8}\). Hence \(\frac{6}{8}+\frac{1}{8}=\frac{7}{8}\).
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