No. 29

Persentase MTK :

= 100% - (20% + 20% + 12% + 12% + 16%)

= 100% - 80%

= 20%

Jumlah siswa MTK :

= 20% x 400 siswa

= 20/100 x 400 siswa

= 1/5 x 400 siswa

= 80 siswa (C)

No. 30

D. Futsal

karena jumlah siswa yg ikut eskul ini paling banyak yaitu 10 siswa

No. 31

= 20 - (-4 x 8) + 48 : (-6)

= 20 - (-32) + (48 : (-6))

= 20 + 32 + (-8)

= 20 + 32 - 8

= 44 (C)

No. 32

D. 18

18 = 2 x 3²

54 = 2 x 3³

72 = 2³ x 3²

FPB = 2 x 3² = 2 x 9 = 18 (D)

No. 33

A. 1/6; 20%; 1/4; 0,5; 0,62

Ubah dulu ke bentuk pecahan yg sama

1/6 = 0,16

20% = 0,20

1/4 = 0,25

0,5 = 0,50

0,62

kalo dari terkecil berarti A

No. 34

= 3/4 : 50% x 1,2

= 3/4 : 50/100 x 12/10

= 3/4 x 100/50 x 6/5

= 3/4 x 2/1 x 6/5

= 36/20

= 9/5

= 1 4/5 (A)

No. 35

Waktu :

= Jarak ÷ kecepatan

= 6 km ÷ 300 m/menit

= 6.000 m x 1 menit/300 m

= 20 x 1 menit

= 20 menit (B)