Below a sequence of number is given, fill the blank space.

Question

1) 6 , 5 , 43.2
2) 5 , 4 , 31.25
3) 4 , 3 , 21.33
4) 3 , 2 , ?

Answer 1

Its 13.5
43.2*5=216
Cube of 6
31.25*4=125
Cube of 5
21.33*3=64
Cube of 4
x*2=27
x=13.5

Answer 2

1-- (6*6*6)/5= 43.2
2-- (5*5*5)/4 = 31.25
3-- (4*4*4)/3 = 21.3333
4-- (3*3*3)/2 = 13.5