Mathematics

Question

Sherrie receives 5 times as many phone calls as Carrie, and Carrie receives 5 less calls than Mary. If the total number of combined calls for them was 68 how many calls did Mary receive?

1 Answer

  • let g, r and l be the calls received,

    r=c−5 and g=5b=5(c−5)=5c−25

    So, g+r+l=7c−30=68,
    7c = 98. c = 14

    Mary received 14 calls.

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