The number which best completes the sequence below is 10 30 15 16 48 24 25?

Answer 1

This probably repeats the following sequence -

(second number) = (first number)*3

(third number) = (second number)/2

(fourth number) = (third number)+1

then repeat

so the answer is 75 according to this logic.

10

10*3=30

30/2=15

15+1=16

16*3=48

48/2=24

24+1=25

25*3=75

after this point, the sequence is broken.

Answer 2

906.

The logic behind the answer is:

t(n) = (28n6 - 621n5 + 5305n4 - 21975n3 + 45637n2 - 43974n + 16200)/60 fpr n = 1, 2, 3, etc.