Challenging Math Problems by Terry Stickels

Author:Terry Stickels [Terry Stickels]
Language: eng
Format: epub
Publisher: Dover Publications
Published: 2015-04-06T16:00:00+00:00

1/4 the time you get a white marble by choosing A. 1/4 the time you get a white marble from choosing D. In the case of choosing B, you get a white marble 1/2 of 1/4 or 1/8 the time.

Total probability of a white marble: 1/4 + 1/4 + 1/8 = 5/8.

3

The watermelons weigh 100 kg at the end of the day. In the morning, the 200 kg of watermelons are 99% water. So the non-water part of the watermelons has a mass of 2 kg. At the end of the day, the melons are 98% water. The remaining 2% is still the 2 kg of non-water material (which does not change when the water evaporates). If 2% equals 2 kg, then 100% equals 100 kg. So, Molly has 100 kg of watermelons left at the end of the day.

4

From lowest to highest value:

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.