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10, 100, 200, 310, ?

(A) 400 (B) 410 (C) 420 (D) 430 Solution: By observing the series, we can find that the pattern is + 90, +100, + 110, ... So next term =... View Article

Sum of factors of 78 are

Solution: Factors of 78 are 1, 2, 3, 6,13, 26, 39 and 78. Sum of factors = 1 + 2 + 3 + 6 + 13 + 26 + 39 + 78 = 168 Hence the sum of factors... View Article

Duramen is?

(A) Sapwood (B) Heartwood (C) Bark (D) Periderm Solution: Duramen is the central or inner dark coloured, non-functional secondary xylem... View Article