Question

Jumlah 3 bilangan bulat berurutan adalah 27. tentukan bilangan bilangan itu!

Answer 1

27 = U1 + U2 + U3
27 = a + a + b + a + 2b
27 = a + a + 1 + a + 2(1)
27 = a +a + 1 + a + 2
27 = 3a + 3
27-3 = 3a
24 = 3a
24 : 3 = a
8 = a

U1 = a = 8
U2 = a + 1 = 8 + 1 = 9
U3 =a + 2 = 8 + 2 = 10

Answer 2

U1 + U2 + U3 = 27
A + (a+1) + (a+1+1) = 27
3a + 3 = 27
3a = 27-3
A = 24 : 3
A= 8

Jadi bilangannya 8,9,10