alleryലേബലുകൾ 7, 12, 17, ..., 82 5 വർദ്ധിച്ചു; ഒന്ന് നഷ്ടപ്പെട്ടു, തുക 660. ലേബൽ നഷ്ടപ്പെട്ടോ?
A62
B47
C57
D52
Answer & Solution
Correct answer: D. 52
ആകെ 16 ലേബലുകൾ 16 × (7 + 82) ÷ 2 = 712, അതിനാൽ നഷ്ടപ്പെട്ട ലേബൽ 712 - 660 = 52 ആണ്.
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