thirty 120/2 = 60 60/2 = 30
The multiples of 20 are 20, 40, 60, 80, 100, 120... The multiples of 30 are 30, 60, 90, 120, 150... The multiples of 15 are 15, 30, 45, 60, 75, 90, 105, 120, 135... The common multiples of 20, 30, and 15 are 60, 120, 180, 240...
The highest common factor (HCF) of 30, 60, and 120 is 30. To find the HCF, you can list the factors of each number and then identify the largest factor that is common to all three numbers. The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30. The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60. The factors of 120 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, and 120. The highest common factor among these three sets of factors is 30.
30, 60, 90, 120, 150
30, 60, 90, 120, 150
If you were reducing by half, you could put a 60 in between the 120 and the 30.
90 It is 30 more than 60 and 30 less than 120 60 + 120 = 180, divided by 2 = 90
thirty 120/2 = 60 60/2 = 30
y=30x+35 +30, +60, +90, +120, +180
30+30=60 20*3=60 120/2=60
The multiples of 20 are 20, 40, 60, 80, 100, 120... The multiples of 30 are 30, 60, 90, 120, 150... The multiples of 15 are 15, 30, 45, 60, 75, 90, 105, 120, 135... The common multiples of 20, 30, and 15 are 60, 120, 180, 240...
LCM(30, 40, 60) = 120 GCF(30, 40, 60) = 10
60 km in 30 minutes = 120 km in 60 minutes - ie 120 km per hour
60, 120, 180 and so on.
60 and 120
60 and 120
1x30=30 2x30=60 3x30=90 4x30=120 5x30=150 6x30=18030, 60, 90, 120, 150 and so on.