Forty hours, £28.00 per hour, bearing in mind that I was an apprentice being paid £25.00 per week, so I needed a second job. Book, exam fees on top, over two years because that's how little money I had so I had to do it that way. Wx cancellations, but very strict with myself about only flying when I could progress, so as to save the maximum amount of money. At the time an approved course was 35 hours, ordinary course 40 hours min. I actually scraped in at 39 hours 45 mins, on a scruffy C150, with about five hours on a SF25 owned by the gliding club (got that in return for helping with the refabric of the SF25). Would have loved to learn on a chipmunk, but the 150 was cheaper and nearer home. I didn't have a car so couldn't travel far anyway. The second job was essential

This was in 1981 and I always managed to continue to fly since, though at least once I had to renew by test due to lack of hours. Of course I was young and keen! Things got better when I got a job as a bus driver, and could afford to fly a lot more.
I see that would now cost £3,093.93 plus the books and exams