There is many ways to lose weight! Do exercise, drink Green tea, running in morning, Jumping Rope
3.26 lbs.
That depends on your metabolism (anabolism/catabolism) rate and how much you exercise in any given week.
Attempting to lose 10 pounds in one week is absurd. You'd have to be on the ab circle 20 hours a day.
41.6 lbs.
The most you can lose safely is 3 pounds per week, and then only if you are exercising enough to get your heart rate up for 30 minutes to an hour.
While a diet plan and losing weight is good, I would not recommend trying to lose weight that fast. 20 lbs in 1 month is really fast and you shouldn't try to lose more weight than 2 lbs a week.
Excersie
You cannot lose 20 pounds in one hour by any natural means.
20% of 623 lbs (pounds) is the same as writing it: 0.2 x 623. Calculations say that 20% of 623 lbs is 124.6 lbs.
You're asking about "how long", with something that has "in a week" already in the question - you might want to rethink that. Anyway, trying to lose 20 lbs in a week is unhealthy, very, very difficult and very unlikely to either succeed or give a lasting result. Aim for losing 1-3 lbs/week instead, which is fairly easy on a sensible diet. You'll reach your goal in a couple of months anyhow, with a much greater chance of both success and a sustainable result.
i weight 150 i need to lose 20 lbs
no ,not even starving yourself will make you lose 20 lbs in 3 weeks.a normal goal for weight loss is 2 -3 lbs a week .the best way to lose weight is to eat healthy and exercise.count your calories and write down everything you eat and what you did for exercise.not counting calories can be a prob and you tend to underestimate exactly how many calories you have consumed.