allery3, 8, 13, __, 23, 28 എന്നിവയിലെ ശൂന്യത പൂരിപ്പിക്കുന്ന നമ്പർ ഏതാണ്?
A17
B19
C20
D18
Answer & Solution
Correct answer: D. 18
ഓരോ പദവും 5 വർദ്ധിക്കുന്നു, അതിനാൽ 13 ന് ശേഷമുള്ള പദം 13 + 5 = 18 ആണ്.
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