allery3, 8, 13, __, 23, 28 இல் கோடிட்ட இடத்தை நிரப்பும் எண் எது?
A17
B19
C20
D18
Answer & Solution
Correct answer: D. 18
ஒவ்வொரு உறுப்பும் 5 அதிகரிக்கிறது, எனவே 13-க்கு அடுத்த உறுப்பு 13 + 5 = 18 ஆகும்.
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