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A 9 year old will have lived through at least 2 leap years, so allowing for that, they will have been alive for 283,996,800 seconds. It is possible they have lived through 3 leap years in which case they will have been alive for 284,083,200 seconds.
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What is the average head circumference of a 10 year old boy?
the average size for a 10 year old boy 4'7 is 19-21 inches
How many bones does a 12 year old boy have?
The same, I was the one who posted this question, I just like putting something about us 12 year old boys. So they have the same amount of bones
Is 120 a good IQ score for a 13 year-old boy?
very good! :)
Is 70 good or normal IQ for a 13 year old boy?
No the average is 100 IQ points
How much should a 10 year old boy weigh at 58 inches?
The healthy weight range for a 10 year old boy who's 58 inches tall is 68 lbs to 92 lbs. Talk with your health care provider for advice specific to your situation.
What is the fastest mile run by a 6 year old boy?
13 seconds
What is the fastest time for a 10 year old boy for 1 mile?
it is 19.23 seconds
A good time for a 13 year old boy to get on the 100 meter?
Average: 16-17 seconds Good: 15 seconds Great: 14 seconds Amazing:13 seconds
How fast should an 12 year old boy run the 400M dash?
about 60 seconds.
How fast should a 14 year old boy run a 40?
about 6-8 seconds
Is 10.58 seconds fast for a sixteen year old boy in the hundred meters?
that's freaky fast
Is 7min 40 seconds a good mile for a 13 year old boy?
yes. it's not bad!!
What is good time for 200 meters for a 13 year old boy?
I'd say about 27 seconds
What is a good two-hundred meter time for fourteen year old boy?
23-24 seconds
Is 6.6 seconds a good 40 yard dash time for 12 year old boy?
6.6 seconds is considered below average for a 40 yard dash for a 12 year old boy. To improve this I would just practice sprints and do leg workouts such as squats.
What is the average 50-yard dash for a 8-year -old boy?
7.2 seconds is the average for the 1000 point club, but average would be about 7.6
Iam 15 year boy what must be my record in 800m race?
My record is 125 seconds and I'm 15!
