यदि (r=4), तो \(\frac{3r^2-2r}{2}\) का मान क्या होगा?

If (r=4), what is the value of \(\frac{3r^2-2r}{2}\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (20)

Step 1

Concept

Putting (r=4) gives (\frac{3(16)-8}{2}=\frac{40}{2}=20). Simplify the whole numerator first in a fraction.

Step 2

Why this answer is correct

The correct answer is C. (20). Putting (r=4) gives (\frac{3(16)-8}{2}=\frac{40}{2}=20). Simplify the whole numerator first in a fraction.

Step 3

Exam Tip

(r=4) रखने पर (\frac{3(16)-8}{2}=\frac{40}{2}=20) मिलता है। भिन्न में पूरा अंश पहले सरल करें।

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Mathematics Answer, Explanation and Revision Hints

यदि (r=4), तो \(\frac{3r^2-2r}{2}\) का मान क्या होगा? / If (r=4), what is the value of \(\frac{3r^2-2r}{2}\)?

Correct Answer: C. (20). Explanation: (r=4) रखने पर (\frac{3(16)-8}{2}=\frac{40}{2}=20) मिलता है। भिन्न में पूरा अंश पहले सरल करें। / Putting (r=4) gives (\frac{3(16)-8}{2}=\frac{40}{2}=20). Simplify the whole numerator first in a fraction.

Which concept should I revise for this Mathematics MCQ?

Putting (r=4) gives (\frac{3(16)-8}{2}=\frac{40}{2}=20). Simplify the whole numerator first in a fraction.

What exam hint can help solve this Mathematics question?

(r=4) रखने पर (\frac{3(16)-8}{2}=\frac{40}{2}=20) मिलता है। भिन्न में पूरा अंश पहले सरल करें।