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 231-240 of 604 questions.
The first of (3) consecutive integers is (n). Which expression represents their sum?
B. (3n+3)
तीन पूर्णांक (n), (n+1), और (n+2) होंगे। उनका योग (3n+3) है। / The three integers are (n), (n+1), and (n+2). Their sum is (3n+3).
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What is the simplified form of \(2x^2+5x-3x^2+x\)?
A. \(-x^2+6x\)
\(2x^2-3x^2=-x^2\) और (5x+x=6x)। अलग घात वाले पदों को अलग जोड़ें। / \(2x^2-3x^2=-x^2\) and (5x+x=6x). Combine terms with different powers separately.
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Which option correctly gives the difference (4a-2b-\(-7a^2b\))?
B. \(11a^2b\)
ऋणात्मक पद घटाने का अर्थ जोड़ना है। इसलिए \(4a^2b+7a^2b=11a^2b\)। / Subtracting a negative term means addition. So \(4a^2b+7a^2b=11a^2b\).
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If (x=3), what is the value of (2(x+4)-x-2)?
A. (5)
(2(3+4)-32=14-9=5)। पहले कोष्ठक और घात का मान निकालें। / (2(3+4)-32=14-9=5). Evaluate brackets and powers first.
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Which expression represents the sum of three times (x) and twice (y)?
B. (3x+2y)
(x) का तीन गुना (3x) और (y) का दोगुना (2y) है। उनका योग (3x+2y) है। / Three times (x) is (3x) and twice (y) is (2y). Their sum is (3x+2y).
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What is the simplified form of (10-3(2-z))?
C. (4+3z)
(10-3(2-z)=10-6+3z=4+3z)। ऋण चिह्न को कोष्ठक के हर पद पर लागू करें। / (10-3(2-z)=10-6+3z=4+3z). Apply the negative sign to every term in the bracket.
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In the expression \(3x^2y-2xy^2\), what type of terms are \(3x^2y\) and \(-2xy^2\)?
B. असमान पदUnlike terms
दोनों में चर हैं पर घातों का क्रम अलग है। इसलिए वे असमान पद हैं। / Both have variables, but their powers are different. Therefore they are unlike terms.
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If one number is (x) and another number is (6) more than it, what is their sum?
A. (2x+6)
दूसरी संख्या (x+6) है। योग (x+(x+6)=2x+6) होगा। / The second number is (x+6). The sum is (x+(x+6)=2x+6).
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What is the simplified form of (2x+3y-5x+y)?
A. (-3x+4y)
(2x-5x=-3x) और (3y+y=4y)। इसलिए सरल रूप (-3x+4y) है। / (2x-5x=-3x) and (3y+y=4y). So the simplified form is (-3x+4y).
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Which expression subtracts (3) from (x) and then multiplies the result by (5)?
C. (5(x-3))
पहले (x-3) बनता है और फिर पूरे परिणाम को (5) से गुणा किया जाता है। इसलिए (5(x-3)) सही है। / First (x-3) is formed, and then the whole result is multiplied by (5). So (5(x-3)) is correct.
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