Skip to content / Đến nội dung
ThichHocToan.com

IMSO 2006 Mathematics — Taiwan Selection Second Round Essay Question 6

IMSO Maths · IMSO 2006 Mathematics — Taiwan Selection Second Round Essay

Question 6

Amy drives her car at constant speed. At 1 pm, 2 pm and 3 pm, she notices her distance from home. When she starts her journey at 1 pm, her distance from home is a two digit number of kilometres, after an hour it is given by the same two digits in reverse order and after a second hour the distance is given by the original two digits separated by a zero. Calculate Amy’s speed.