a + 12 = 20
a + 8
U21 = a + 20b
= 8 + 20 (2)
= 48
Soal 3
27, 23, 19, 15, 11, ....
a. 9, 5
b. 8, 4
c. 7, 3
d. 10, 6
a + 12 = 20
a + 8
U21 = a + 20b
= 8 + 20 (2)
= 48
27, 23, 19, 15, 11, ....
a. 9, 5
b. 8, 4
c. 7, 3
d. 10, 6
Editor: Siti Juniafi Maulidiyah
Sumber: Berbagai Sumber