Sheet # 139
Name: _____________________
Date_____________
SHOW YOUR WORK .
1) A do-it-yourself carpenter wanted to build a stairway from ground level to the porch of his house. The height between ground level and the porch floor was 10 feet 8 inches. The height of each step was 8 inches. How many steps are needed to get from the ground to the porch floor?
2) Jack and Jim enjoy jogging in the afternoon. Today, they would be jogging together. Jack wouldn't be back tomorrow because he jogs every other day. Jim will miss 2 days days before he is back because he runs every 3rd day. In the next 90 days, how many times with they be jogging together?
3) You have invited your 6 friends to your birthday party. Your mother has planned an interesting way to serve the refreshments. She instructs you and your friends to line up in a line. You shake the hand of each friend down the line and receive your plate of ice cream and cake. Each friend does the same shaking the hands of the rest of the people in the line before receiving their plate of ice cream and cake. Assuming that no person's hand more than once, how many total hand shakes are there by the time the last person gets refreshments?