9:50。 The whole journey takes 35 minutes and leaves at 9: 15, which means 15 minutes plus 35 minutes delayed in the process. It won't arrive until 9: 50. 9: 00 15 plus 35 points equals 9: 50. This topic involves addition, which is one of the four basic operations. Refers to the calculation of combining two or more numbers and quantities into one number and quantity.