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Mathematics Like Terms MCQ Questions for Class 9

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(9y-4y) को सरल करने पर क्या प्राप्त होगा?

What do you get when you simplify (9y-4y)?

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Correct Answer

B. 5y

Explanation

Simple Explanation

\(9y\) और \(4y\) समान पद हैं, क्योंकि दोनों में \(y\) की घात 1 है। अतः उनके गुणांकों को घटाते हैं: \(9y-4y=(9-4)y=5y\)। \(13y\) गुणांकों को जोड़ने पर मिलता, जबकि यहाँ घटाव है। \(5\) में चर \(y\) छूट जाता है, इसलिए वह सही नहीं है। परीक्षा टिप: समान पदों को जोड़ते या घटाते समय चर और उसकी घात को अपरिवर्तित रखें। / \(9y\) and \(4y\) are like terms because both contain \(y\) to the first power. Subtract their coefficients: \(9y-4y=(9-4)y=5y\). \(13y\) would result from adding the coefficients, whereas the expression involves subtraction. \(5\) incorrectly leaves out the variable \(y\). Exam tip: when adding or subtracting like terms, retain the variable and its exponent.

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\(6x\) और \(6y\) किस प्रकार के पद हैं?

What type of terms are \(6x\) and \(6y\)?

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Correct Answer

B. असमान पदUnlike terms

Explanation

Simple Explanation

\(6x\) और \(6y\) के चर भाग क्रमशः \(x\) और \(y\) हैं, जो अलग-अलग हैं। इसलिए ये असमान पद हैं। समान पदों में चर और प्रत्येक चर की घात समान होनी चाहिए; गुणांक अलग हो सकते हैं। परीक्षा टिप: पदों की तुलना करते समय पहले चर और उनकी घात जाँचें, गुणांक नहीं। / The variable parts of \(6x\) and \(6y\) are \(x\) and \(y\), respectively, so they are different. Therefore, these are unlike terms. Like terms must have the same variables with the same powers, although their coefficients may differ. Exam tip: compare the variables and their exponents before comparing coefficients.

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(4a) और (-2a) कैसे पद हैं?

What kind of terms are (4a) and (-2a)?

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Correct Answer

B. समान पदLike terms

Explanation

Simple Explanation

दोनों पदों का चर भाग (a) है इसलिए ये समान पद हैं। गुणांक अलग होने से समानता नहीं बदलती। / Both terms have the variable part (a) so they are like terms. Different coefficients do not change that.

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