Sam has some red and yellow cubes. She has 20 cubes in total. She has 8 more yellow cubes than red ones. How many red cubes does she have?

12

Step-by-step explanation:

because if she has 8 more red cubes that yellow than that would mean it would become 12

20-8=12

Step-by-step explanation:

let the red cubes be x,

total cubes=20

yellow cubes=x+8

according to question,

x+8=20

x=20-8

x=12

hence, sam has 12 cubes

(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

24

step-by-step explanation: