How many times does a typical person blink her eyes in a lifetime?

Video transcript

Hey everyone. So today we're being asked to estimate the number of times the number of times an average person eats within their lifetime and to calculate how many calories that number is that number of meals per lifetime is And we're being told that the average life expectancy or the average lifespan of a person 72.6 years, whether intake is seven or average intake is calories per meal. So let's go ahead and work with this. So excuse me, It tells us that the average person Eats three meals per day. So if we have three meals per day, three meals per day per day And we have 365 days per year, oops per year, Then a person consumes 1,095 meals per year. And we've written out these conversion factors as we call them in such a way because when multiplying this allows me to, because on the left and three meals per day day is under the, in the denominator, while on the right, it is in the numerator, so they will cancel out leaving us with a value as such and we need to get this in meals per years because life expectancy is given in years. So with this value, we can now say that if a person has 1,095 meals per year meals per year And on average they live 72.6 years, then by multiplying them, our ears will cancel and we'll be left with the value Of 79, meals in a lifetime. So this is for the lifetime. So with this answer we can actually eliminate two over answer choices right off the bat. We can eliminate answer choice B. And answer choice D. Because they don't match the lifetime number of meals that we have. From here. We know that the average intake of calories of 750 calories per meal. And let me write this down in blue, we have 750 cows per meal. And If we have or 79,497 meals in our lifetime. So this is meals per lifetime. Then our meals can cancel out by multiplication Will be left with an answer of 5.962, 3 times 10 to the seventh calories ingested per lifetime. Which means that the answer to our question is that in a lifetime a person eats 79, meals and ingest on average, 5.9623 times 10 to the seventh calories within said lifetime. Which lines up with anti choice C. I hope this helps. And I look forward to seeing you all in the next one