What is the simplified form of the 3 ratios?
A.15
B.1/30
C.1/15

A. 450 B. 1 C. 2

Step-by-step explanation:

A : B : C

15 : 1/30 : 1/15

MULTIPLYING BY 30 ON NUMERATOR (as 30 is LCM OF 15, 30, 15 :

15 × 30 : 1/30 × 30 : 1/15 × 30

450 : 1 : 2

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18