1.   Find the least common multiple of 6 and 15.
    A. 30 B. 3
    C. 60 D. 15
    Hint

  2.   What is the least common multiple of 4, 5, and 16?
    A. 80 B. 64
    C. 16 D. 160
    Hint

  3.   Find the least common multiple of 6, 8, and 10.
    A. 120 B. 140
    C. 86 D. 240
    Hint

  4.   Rachel and Diego both jog regularly. Rachel jogs every other day, and Diego jogs every third day. They both jogged today. How many days will it be before they both jog on the same day again?
    A. 3 B. 12
    C. 2 D. 6
    Hint

  5.   Marquez is on a certain baseball team that has a four-man pitching rotation, so each pitcher plays every four days. Walter is on another team, which has a five-man rotation. If Marquez and Walter play in the same game today, how many days will it be before they play on the same day again?
    A. 5 B. 4
    C. 10 D. 20
    Hint



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