यदि (a-b=4) और (b=3), तो (2a-b) का मान क्या होगा?

If (a-b=4) and (b=3), what is the value of (2a-b)?

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Correct Answer

B. (11)

Step 1

Concept

From (a-b=4) and (b=3), (a=7). Therefore (2a-b=14-3=11).

Step 2

Why this answer is correct

The correct answer is B. (11). From (a-b=4) and (b=3), (a=7). Therefore (2a-b=14-3=11).

Step 3

Exam Tip

(a-b=4) और (b=3) से (a=7)। इसलिए (2a-b=14-3=11)।

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Mathematics Answer, Explanation and Revision Hints

यदि (a-b=4) और (b=3), तो (2a-b) का मान क्या होगा? / If (a-b=4) and (b=3), what is the value of (2a-b)?

Correct Answer: B. (11). Explanation: (a-b=4) और (b=3) से (a=7)। इसलिए (2a-b=14-3=11)। / From (a-b=4) and (b=3), (a=7). Therefore (2a-b=14-3=11).

Which concept should I revise for this Mathematics MCQ?

From (a-b=4) and (b=3), (a=7). Therefore (2a-b=14-3=11).

What exam hint can help solve this Mathematics question?

(a-b=4) और (b=3) से (a=7)। इसलिए (2a-b=14-3=11)।