25, 50, 75, 100, 125.
They are: 25 50 75 100 and 125
The multiples of 25 are 1, 5, and 25.
Just calculate 25 x 0, 25 x 1, 25 x 2, etc.
25x1, 25x2, 25x3, 25x4, and 25x5
75 and 150
The sum of the first 25 numbers is 25*26/2 = 325 So the sum of the first 25 multiples of 12 is 325*12 = 3900
30, 60, 90, 120, 150
It is 75.
25, 50, 75, 100
The first two multiples are 9 and 8.
The first four multiples of five: 5, 10, 15, 20
975
75
25, 50, 75
25, 50, 75, 100, 125.
They are: 25 50 75 100 and 125