A and B run from a and B at the same time. They meet 40 minutes later. After meeting, they continue to move forward at the same speed. B reaches the midpoint between a and B in 5 minutes. It takes a total of 5 minutes for a to complete the whole journey______ Minutes

A and B run from a and B at the same time. They meet 40 minutes later. After meeting, they continue to move forward at the same speed. B reaches the midpoint between a and B in 5 minutes. It takes a total of 5 minutes for a to complete the whole journey______ Minutes

A: it takes 72 minutes for car a to complete the whole journey