यदि (6, 6+d, 6+2d, 6+3d) में दूसरा पद (11) और चौथा पद (21) है, तो (d) क्या है?
If the second term is (11) and the fourth term is (21) in (6, 6+d, 6+2d, 6+3d), what is (d)?
Explanation opens after your attempt
Correct Answer
B. (5)
Concept
From (6+d=11), (d=5), and (6+3d=21) confirms it. When two conditions are given, verify the answer with both.
Why this answer is correct
The correct answer is B. (5). From (6+d=11), (d=5), and (6+3d=21) confirms it. When two conditions are given, verify the answer with both.
Exam Tip
(6+d=11) से (d=5), और (6+3d=21) इसकी पुष्टि करता है। दो शर्तें हों तो दोनों से उत्तर जांचें।
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