Grades 1-2 Video Solutions 2025-2025_1-2

Video Transcription

Problem number 20. Three years ago, the sum of Anna's age and Ben's age was six years. Anna is currently seven years old. How old is Ben now?  To solve this problem, we can draw a timeline like this to visualize the situation. Right now, we know that Anna is seven and we don't know Ben's age.  However, we know that three years ago, Anna has to be four. And remember that the question says that three years ago, the sum of Anna's age and Ben's age was six years.  Since Anna is four, that means that three years ago, Ben is two.  And now we can go forward three years to see that now Ben has to be five years old. That means the answer is B, five years.

Video Summary

Problem number 20. Three years ago, the sum of Anna's age and Ben's age was six years. Anna is currently seven years old. How old is Ben now? To solve this problem, we can draw a timeline like this to visualize the situation. Right now, we know that Anna is seven and we don't know Ben's age. However, we know that three years ago, Anna has to be four. And remember that the question says that three years ago, the sum of Anna's age and Ben's age was six years. Since Anna is four, that means that three years ago, Ben is two. And now we can go forward three years to see that now Ben has to be five years old. That means the answer is B, five years.

Keywords

Anna's age

Ben's age

timeline

age problem

math solution