some math - 7th grade!!?

Question

1. What time is it on a twelve-housr clock 6 1/2 hours after a military clock shows 1500?

2. In what year was Bruce Springsteen born? Two digits in the year are the same. The sum of the digits is a prime and the product of the digits is the square of 18.

3. Berlin, prewar capital of Germany, lies within the borders of East Germany. The cit is divided into East Berlin, with an area of 156 square miles and a population of 1,146,00; and population of 1,890,300. Which part of the city has more people per square mile and by how much?

4. As of 1984 the New York Yankees had been in 33 World Series. They had won teice as many Series as they had lost. How many World Series had they won?

5. The first Olympic marathon in 1896 was won by Greece in 2 hours, 58 minutes, 50 secounds. In 1984 Portugal won the marathon with a time of 2 hours, 9 min, 55 sec. How much time did Portugal cut off the 1896?

ALRIGHT - and those who flip out and say DO YOUR OWN HOMEWORK, get a life - it's not my homework, I want to see how many people can actually get some questions right and how they got that in 7th grade math.

If you have a problem, then just go back to the other answers, dont cry to me and say do your own homework

ALRIGHT - and those who flip out and say DO YOUR OWN HOMEWORK, get a life - it's not my homework, I want to see how many people can actually get some questions right and how they got that in 7th grade math.

If you have a problem, then just go back to the other answers, dont cry to me and say do your own homework

Answer 1

1. 9:30 PM
Solution: 1500 = 3:00 pm. 6.5 hours later = 9:30 PM

2. 1949 (I miss calculated earlier)
Solution: Springsteen is less than 100 years old so he was born in the 1900s.
1*9*A*B = 18 * 18 (i.e. 324)
A *B= 36
single digit factors of 36 = 4*9, 6*6
1+9+6+6 is not prime
1+9+4+9 is prime
And he wasn't born in 1994 which would make him 12... man, he is older than I thought!

3. Data incomplete. need more information about West Berlin.

4. 22 wins, 11 losses
solution: wins = 2 x losses
wins + losses = 33
2 x losses + losses = 33
losses = 11


5. 48 minutes and 55 seconds
Solution: 2 hours 58 minutes 50 seconds -
2 hours 9 minutes 55 seconds
Hard way: convert everything into seconds and recalculate
Easy way: 2 hours cancel out.
"borrow" 1 minute from 58 to get 110 seconds
110 seconds - 55 seconds = 55 seconds
57 min - 9 min = 48 min

Answer 2

1.9.30 p.m.

2.square of 18=324
1949

3.sum incomplete

4.2S+S=33
S=11
so 22 wins

5.49 m 110 sec-9 min 55 sec
=40 min and 55 sec