What is the sum of four consecutive multiples of 5?

Discussion in 'Calculator Requests' started by math_celebrity, Dec 15, 2022.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    What is the sum of four consecutive multiples of 5?

    First number = n
    Second number = n + 5
    Third number = n + 10
    Fourth number = n + 15

    Add them together:
    (n + n + n + n) + (5 + 10 + 15)
    4n + 30
     

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