kejuan

Suppose the lionel trains vistor's center gives a discount coupon to every tenth vistor.Everytwelfth vistors gets a free bumper sticker. which will be the first vistor to receive both?

Lenny,mark,andliza are going to jog along 3 different trails in the park. To complete one circuit , lenny takes 6 min., Mark takes 12 min., and liza takes 9 min. if they start at the same place and the same time, how long will it be before they are togeth...