Tuổi của Peter 8 năm trước bằng tuổi của em trai anh ấy 1 năm trước. Biết rằng tổng số tuổi của 2 anh em hiện nay là 47. Hỏi năm nay Peter bao nhiêu tuổi? ☺

 Vợ của Paul là một góa phụ, và bà có em gái là Marry. Liệu Paul có thể tái hôn với Marri được không?

Peter, Jack and Tom shared 176 marbles in the ratio 4:8:10.
Tom received ....... marbles more than Peter.

Hai bạn Anna và Peter sống trên cùng một phố . Từ nhà Anna tính về một phía có 27 ngôi nhà , và phía kia có 13 ngôi nhà . Nhà của Peter ở chính giữa phố. Hỏi giữa nhà của Anna và nhà của Peter có bao nhiêu ngôi nhà ?

Peter and Jacob were running. Both of them run with their constant speeds. They started at the same time and the same place. When Jacob reached the finishing line, Peter had only run of what Jacob had run. Jacob’s speed is 75 m/min (metre per minute) faster than Peter. What was Peter’s speed in m/min?

Peter and Jacob were running. Both of them run with their constant speeds. They started at the same time and the same place. When Jacob reached the finishing line, Peter had only run  of what Jacob had run. Jacob’s speed is 75m/min (metre per minute) faster than Peter. What was Peter’s speed in m/min? 

Peter and Jacob were running. Both of them run with their constant speeds. They started at the same time and the same place. When Jacob reached the finishing line, Peter had only run  of what Jacob had run. Jacob’s speed is 75m/min (metre per minute) faster than Peter. What was Peter’s speed in m/min ? 

Peter and Jacob were running. Both of them run with their constant speeds. They started at the same time and the same place. When Jacob reached the finishing line, Peter had only run 5/8 of what Jacob had run. Jacob’s speed is 75m/min (metre per minute) faster than Peter. What was Peter’s speed in m/min?