Why does watching a video at 1.25 speed decrease the time by 20%? And 1.5 speed decreases it by 33%?

567 views

I guess this reveals how fucking dumb I am. I can’t get the math to make sense in my head. If you watch at 1.25 speed, logically (or illogically I guess) I assume that this makes the video 1/4 shorter, but that isn’t correct.

In short, could someone reexplain how fractions and decimals work? Lol

Edit: thank you all, I understand now. You helped me reorient my thinking.

In: 8653

29 Answers

Anonymous 0 Comments

Imagine you have a dollar in quarters, so 4 quarters. 100% = 100 cents. So 125% = 125 cents = 5 quarters. However the new quarter is only 1 of 5 quarters, 1/5 = 20%, therefore your new quarter represents 20% of your total money now.

Now imagine you have a dollar in 50 cent coins. 2 coins. You get another 50 cent coin, increasing your money to 150% of what you used to have. However, that new 50 cent coin is one of three, so it represents 33% of your money now.

You are viewing 1 out of 29 answers, click here to view all answers.