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 431-440 of 604 questions.
Which option gives the correct simplified form of (6(x-2)-[4x-{3x+1}])?
A. (5x-13)
अंदर (4x-(3x+1)=x-1), इसलिए (6x-12-(x-1)=5x-11) नहीं बल्कि (5x-11) है। गणना में अंतिम नियतांक ध्यान से जोड़ें। / Inside (4x-(3x+1)=x-1), so (6x-12-(x-1)=5x-11). Add the final constants carefully.
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Which is the correct simplified form of (6(x-2)-[4x-{3x+1}])?
B. (5x-11)
अंदर (4x-{3x+1}=x-1) है। इसलिए (6x-12-(x-1)=5x-11)। / Inside (4x-{3x+1}=x-1). Therefore (6x-12-(x-1)=5x-11).
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What is the expression for the sum of the number (7) less than (x) and the number (4) more than (x)?
A. (2x-3)
दो संख्याएं (x-7) और (x+4) हैं। उनका योग (2x-3) है। / The two numbers are (x-7) and (x+4). Their sum is (2x-3).
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What is the simplified form of \(\frac{7x}{10}-\frac{x}{5}\)?
A. \(\frac{x}{2}\)
\(\frac{x}{5}=\frac{2x}{10}\), इसलिए \(\frac{7x}{10}-\frac{2x}{10}=\frac{x}{2}\)। भिन्न पदों में समान हर बनाएं। / \(\frac{x}{5}=\frac{2x}{10}\), so \(\frac{7x}{10}-\frac{2x}{10}=\frac{x}{2}\). Make a common denominator for fraction terms.
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If (x+y=8) and (x-y=2), what is the value of (4(x+y)-5(x-y))?
A. (22)
दिए गए मान रखने पर (4(8)-5(2)=22) मिलता है। पूरे कोष्ठक को एक मान की तरह उपयोग करें। / Using the given values gives (4(8)-5(2)=22). Use the whole bracket as one value.
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What is the simplified form of \(5x^2-6xy+3y^2-2x^2+11xy-8y^2\)?
A. \(3x^2+5xy-5y^2\)
\(x^2\), (xy), और \(y^2\) पदों को अलग जोड़ने पर \(3x^2+5xy-5y^2\) मिलता है। अलग चर भागों को न मिलाएं। / Combining \(x^2\), (xy), and \(y^2\) terms separately gives \(3x^2+5xy-5y^2\). Do not mix different variable parts.
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What is the simplified form of (15-[4x-3(2-x)])?
B. (21-7x)
अंदर (4x-6+3x=7x-6), इसलिए (15-(7x-6)=21-7x)। बाहर का ऋण चिह्न पूरे कोष्ठक पर लागू करें। / Inside (4x-6+3x=7x-6), so (15-(7x-6)=21-7x). Apply the outside minus sign to the whole bracket.
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If (t=3), what is the value of \(2t^4-5t^3+t^2\)?
C. (36)
मान रखने पर (2(81)-5(27)+9=36) मिलता है। बड़ी घातों का मान पहले निकालें। / Substitution gives (2(81)-5(27)+9=36). Evaluate higher powers first.
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Which expression subtracts the difference of (a) and (b) from (5) times their sum?
C. (5(a+b)-(a-b))
योग (a+b) है और उसका (5) गुना (5(a+b)) है। इसमें से अंतर (a-b) घटाने पर (5(a+b)-(a-b)) बनता है। / The sum is (a+b), and five times it is (5(a+b)). Subtracting the difference (a-b) gives (5(a+b)-(a-b)).
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What is the simplified form of ((3x-4)+(2x+9)-(5x-7))?
A. (12)
कोष्ठक हटाने पर (3x-4+2x+9-5x+7=12) मिलता है। (x) वाले पद कट जाते हैं। / Removing brackets gives (3x-4+2x+9-5x+7=12). The (x)-terms cancel out.
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