INFORMATION FROM THE VIDEO: THE LIZARD DID 8 PUSH-UPS IN 13 SECONDS. Assumptions
ID: 3169443 • Letter: I
Question
INFORMATION FROM THE VIDEO: THE LIZARD DID 8 PUSH-UPS IN 13 SECONDS.
Assumptions:
There are 121 dietary Calories (kilocalories) in 100 grams of crickets
The crickets (that the lizard we see in the video eats) weigh 0.5 grams each
It takes 0.1 dietary Calories of energy for the lizard to do one push-ups
The lizard in the video spends a total of 30 minutes of each day doing push-ups
During his 30 minutes of push-ups, he does them at the same rate that you see in the video
The lizard does these displays every day for 30 days during the breeding season
The question you need to answer is: How many crickets did the lizard need to eat to fuel his 30 days of push-up displays?
To find out how many total push-ups the lizard did during the breeding season, count how many push-ups he did in the video and how long it took him to do them. You now have a push-up count per unit time that you can use to figure out how many push-ups the lizard would do per day and how many he would do in 30 days. (For example, if he did one push-up per minute, then he would be able to do 30 push-ups in 30 minutes. At 30 minutes per day, he would do 900 push-ups in 30 days.)
Calculate how many dietary Calories he spent doing all those push-ups. (Continuing our example, 900 push-ups x 0.1 calories = 90 dietary Calories) Note - you can leave your answers in dietary Calories, no need for conversion.
Calculate how many dietary Calories there are in a cricket.
Calculate how many crickets he would have to have eaten to fuel all those push-ups.
Explanation / Answer
Calculating number of pushups for 30 days
For 13 sec lizard did 8 pushups, so for 30 mins lizard will do (30*60*8)/13 = 1107.6 pushups.
For 30 days lizard will do (30*1107.6) = 33228 pushups.
For 1 pushup 0.1 dietary calories of energy, so for 33228 pushups lizard needs (33228*0.1)= 3322.8 dietary calories.
Calculating number of crickets
121 dietary calories in 100 grams of cricket
For 3322.8 dietary calories need (3322.8*100)/121 =2746.1 grams of cricket
One cricket weighs 0.5 grams
Total number of crickets lizard need to eat = (2746.1 / 0.5) = 5492.2
Calculating number of dietary calories per cricket
0.5 grams per 1 cricket, so for 100 grams we need (100*0.5) = 200 crickets
121 dietary calroies in 200 crickets
Dietary calories in one cricket = 0.605
Final answers
Total number of dietary calories spent = 3322.8
Dietary calories in one cricket = 0.605
Total number of crickets lizard need to eat for 30 days = 5492.2