Angad was thinking of a number. Angad adds 20 to it, then doubles it and gets an answer of 53. What

Discussion in 'Calculator Requests' started by math_celebrity, Jun 19, 2020.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    Angad was thinking of a number. Angad adds 20 to it, then doubles it and gets an answer of 53. What was the original number?

    The phrase a number means an arbitrary variable, let's call it n.
    • Start with n
    • Add 20 to it: n + 20
    • Double it means we multiply the expression by 2: 2(n + 20)
    • Get an answer of 53: means an equation, so we set 2(n + 20) equal to 53
    2(n + 20) = 53

    To solve for n, we type this equation into our search engine and we get:
    n = 6.5
     

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