Which Of The Following Is The Sum Of All The Multiples Of 3 From 15 To 48?, A. 315 , B. 360 , C. 378 , D. 396

Which of the following is the sum of all the multiples of 3 from 15 to 48?

a. 315
b. 360
c. 378
d. 396

 

Answer:

C. 378

Step-by-step explanation:

3 x 5 = 15

3 x 6 = 18

3 x 7 = 21

3 x 8 = 24

3 x 9 = 27

3 x 10 = 30

3 x 11 = 33

3 x 12 = 36

3 x 13 = 39

3 x 14 = 42

3 x 15 = 45

3 x 16 = 48

Multiples of 3 from 15 to 48: 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48

15 + 18 + 21 + 24 + 27 + 30 + 33 + 36 + 39 + 42 + 45 + 48 = 378

The sum of all multiples of 3 from 15 to 48 is 378.


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