allery5, 9, 13, 17 দিয়ে শুরু হওয়া এবং একইভাবে চলতে থাকা শ্রেণির 7ম পদটি নির্ণয় করুন।
A25
B29
C33
D27
Answer & Solution
Correct answer: B. 29
ব্যবধানটি হলো 4, তাই 7ম পদটি হলো 5 + 6 x 4 = 29।
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