A father and son eat meals together. If the son eats twice as fast as the father and the father eats a meal in 45 minutes, how many meals can the son eatin 3 hours?
2006-09-20 14:28:45 · 12 answers · asked by Sasha 2 in Science & Mathematics ➔ Mathematics
Since the son eats twice as fast as the father, and the father eats in 45 min., 45/2 = 22.5 min. is the amount of minutes it takes for the son to eat a meal. 22.5 min. is twice as fast as 45 min. For 3 hours, 60 min. x 3 = 180 min total. 180/22.5 = 8. The son can eat 8 meals in 3 hours.
2006-09-20 14:32:50 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The first thing to do on this problem is to look at the wording and get the facts straight before making any calculations. So from reading the problem we see that the father eats a meal in 45 minutes. We also see that the son eats twice as fast as the father. So from the words twice as, we know that in order to calculate how many minutes that it takes the son to eat we have to divide the father's time (45 min.) by 2. So now we know that 2 / 45 = 22.5 minutes, it takes the son 22.5 minutes to eat. The final question asks us how many meals can the son eat in 3 hours. So we have to convert hours into minutes and order to proceed with the calculation. There are 60 minutes in 1 hour so we can multiply 60 by three to arrive at how many minutes this is, which ends up being 180 minutes. So now we know that the son eats one meal in 22.5 minutes and he has 180 minutes in which to eat it, so to get the final answer divide 180 minutes by 22.5 minutes to get 8 meals.
2006-09-20 21:53:04 · answer #2 · answered by Ace 2 · 0⤊ 0⤋
60*3=180 minutes in 3 hours.
The father is going to eat 4 meals in the 3 hour period.
45+45+45+45=180
son can eat 2 meals per the fathers one.
4*2=8
2006-09-20 21:42:33 · answer #3 · answered by John 2 · 0⤊ 0⤋
?
Is this as easy as it seems? Or is it a trick question? Or is it a real math question?
The father can eat 4 meals in 3 hours. The son can eat 8 meals in 3 hours?
2006-09-20 21:31:13 · answer #4 · answered by ? 6 · 0⤊ 0⤋
8
2006-09-20 21:38:02 · answer #5 · answered by whatthe 3 · 0⤊ 0⤋
Son eats meal in 22.5 minutes. In 3 hours (180 mins) he can eat 180 / 22.5 meals or 8.
2006-09-20 21:31:19 · answer #6 · answered by Joe C 3 · 0⤊ 0⤋
If you do the math the answer is 8 meals. But i have never seen anyone able to each that much.
2006-09-20 22:32:38 · answer #7 · answered by Dreana S 2 · 0⤊ 0⤋
the son can eat 8 meals in 3 hours, but I wouldn't suggest trying it because he would eventually make himself sick
2006-09-20 21:38:04 · answer #8 · answered by tiggerluvbug72 2 · 0⤊ 0⤋
4 because he has to wait for his because they eat meals together.
2006-09-20 21:32:06 · answer #9 · answered by princess 2 · 0⤊ 0⤋
just one meal
2006-09-20 21:30:54 · answer #10 · answered by Rammohan 4 · 0⤊ 0⤋