यदि समांतर श्रेणी के लगातार तीन पद (x-4), (x+2), (2x-2) हैं, तो समान अंतर क्या है?
If three consecutive terms of an arithmetic progression are (x-4), (x+2), (2x-2), what is the common difference?
Explanation opens after your attempt
C. (6)
Concept
From (2(x+2)=(x-4)+(2x-2)), (x=8), so the common difference is (10-4=6). First find (x), then find the difference.
Why this answer is correct
The correct answer is C. (6). From (2(x+2)=(x-4)+(2x-2)), (x=8), so the common difference is (10-4=6). First find (x), then find the difference.
Exam Tip
(2(x+2)=(x-4)+(2x-2)) से (x=8), इसलिए समान अंतर (10-4=6) है। पहले (x) निकालें फिर अंतर निकालें।
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