Lining up & Interval( Week 27 Evaluation) 1. There are 21 students lining up in a row. Counting from one end, Mary is at the 12th place. At which place will Mary be if counting from the other end of the row? 2. Students are lining up in a row. There are 10 students on Jennifer's left and 3 students are on Jennifer's right. How many students are there in the row? 3. There are 14 rungs on a ladder. Mary is on the 1st rung and Richard is on the 10th rung. How many rungs are there between Mary and Richard excluding the ones that they are on? 4. All students are lining up in a row. There are 5 students on Laura's right and 3 students on Rene's left and 9 students between Laura and Rene. How many students are on Laura's left? 5. There are 16 students lining up in a row. There are 2 students on Julia's left and 2 students on Smith's right. How many students are between Julia and Smith? 6. There are 18 students standing in a cycle. Alice and Andy are among them. There are 2 students between Alice and Andy if counting from her left side. How many students are between Alice and Andy in counting from her right side? 7. All students are lining up in a row. There are 4 students on Susan's right and 5 students on Tom's left and 7 students between Susan and Tom. How many students are in the row? 8. All students are lining up in a row. There are 3 students on Susan's right and 2 students on Ben's left and 8 students between Susan and Ben. How many students are on Ben's right? 9. There are 19 students lining up in a row. There are 6 students on Curtis's right, how many more students are on Curtis's left than on his right? 10. A group of students stand in a cycle. Morgan and John are among them. If Morgan starts to count from her right side and counts herself as the 1st one, then John is the 5th students. If she starts to count from her left side and count herself as the 1st one, then John is the 14th students. How many students are there in total? |