Old questions are often fun.
Jun. 23rd, 2014 08:22 am![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
theweaselkingA trio of very old but still very neat questions.
1. A bat and a ball cost $1.10 in total. The bat costs $1.00 more than the ball. How much does the ball cost?
2. If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?
3. In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half of the lake?
Responses screened, initially!
ETA: Ooh, a 4th.
4. A certain town is served by two hospitals. In the larger hospital about 45 babies are born each day, and in the smaller hospital about 15 babies are born each day. As you know, about 50% of all babies are boys. However, the exact percentage varies from day to day. Sometimes it may be higher than 50%, sometimes lower.
For a period of 1 year, each hospital recorded the days on which more than 60% of the babies born were boys. Which hospital do you think recorded more such days?
a)The larger hospital
b)The smaller hospital
c) About the same (that is, within 5% of each other)
EDIT: OKAY IT'S BEEN 14 HOURS. ANSWERS ARE UP. Feel free to guess if you haven't read the answers yet.
1. A bat and a ball cost $1.10 in total. The bat costs $1.00 more than the ball. How much does the ball cost?
2. If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?
3. In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half of the lake?
Responses screened, initially!
ETA: Ooh, a 4th.
4. A certain town is served by two hospitals. In the larger hospital about 45 babies are born each day, and in the smaller hospital about 15 babies are born each day. As you know, about 50% of all babies are boys. However, the exact percentage varies from day to day. Sometimes it may be higher than 50%, sometimes lower.
For a period of 1 year, each hospital recorded the days on which more than 60% of the babies born were boys. Which hospital do you think recorded more such days?
a)The larger hospital
b)The smaller hospital
c) About the same (that is, within 5% of each other)
EDIT: OKAY IT'S BEEN 14 HOURS. ANSWERS ARE UP. Feel free to guess if you haven't read the answers yet.