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AKSHITA DIXIT from R K SARDA VIDYA MANDIR, RAIPUR

Subject :NSO Class : Class 6

Choose the number which is different from others in the given series :
27, 125, 343, 729, 1321
(a) 27
(b) 125
(c) 343
(d) 1321

Ans 1:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon

correct answer will be (B) because sum of the digits of that number is the minimum as compared to others

Nikkita from Euroschool Whitefield, Bengaluru

pls explain this to me the Olympiad trainer hasn't given explanation to this question

Sanket Kulkarni from Euroschool, Pune