tolong di jawab y dr no 31-34 trims

31.)

• 3 3/4 = 15/4
• 0,24 = 24/100
• 8% = 8/100

15/4 : 24/100 × 8/100 =
15/4 × 100/24 × 8/100 =
12.000/9.600 = 1,25
==> 125/100 = 5/4 = 1 1/4 (C)

32.)

3/4 + 2/5 = 15+8/20 = 23/20
==> 23/20 - ( 1/8 × 2 = 2/8 )
==> 23/20 - 2/8 =46-10 /40 = 36/40
==> 36/40 = 9/10 (D)

33.)

28/10 × 40/100 = 1.120/1.000 = 1,12 (B)

34.)

1 - ( 0,05 + 0,10 ) =
1 - 0,15 = 0,85 ==> 85/100 = 17/20