By Jeff
- **Sep 4**, 02:00 AM

Math
Kate and David each have $10. Together they flip a coin 5 times. Every time the coin lands on heads, Kate gives David $1. Every time the coin lands on tails, David gives Kate $1. After the coin is flipped 5 times, what is the...

Read More

By Jeff
- **Sep 3**, 02:00 AM

Read More

By Jeff
- **Sep 2**, 02:00 AM

Read More

By Jeff
- **Sep 1**, 02:00 AM

Math
Two cities, Kensington, MD and Reston, VA are 30 km apart. From both of these cities, simultaneously, two hikers start their journeys towards each other. They are walking at a constant speed of 5 km/hour each. Simultaneously, a fly leaves the city of Kensington. It...

Read More

By Jeff
- **Aug 31**, 02:00 AM

Math
In xy plane, line K passes through the points A(6, -7) and B(4, 5). Does line K also pass through point C?
(1) Coordinates of Point C are ( 5, -1)
(2) Point C is equidistant from Point A and Point B.
Question Discussion & Explanation
Correct Answer- A...

Read More

By Jeff
- **Aug 28**, 02:00 AM

Math
4% of the population of a certain country owns both a car and a boat. If 20% of those who own a boat, do not own a car, what percentage of the country's population owns a boat?
A. 5%
B. 7.5%
C. 10%
D. 12.5%
E. 15%
Question Discussion & Explanation
Correct...

Read More

By Jeff
- **Aug 27**, 02:00 AM

Read More

By Jeff
- **Aug 26**, 02:00 AM

Math
There are 6 cards numbered from 1 to 6. They are placed into a box, and then one is drawn and put back. Then another card is drawn and put back. If the sum of the two cards was 8, what is the probability that...

Read More

By Jeff
- **Aug 25**, 02:00 AM

Math
Water flows into an empty tank of 54 liters via 12 small pipes. The rate of flow in each pipe is 1 liter per hour. However, water also flows out of the tank via several large pipes at the rate of 1.5 liter per hour....

Read More

By Jeff
- **Aug 24**, 02:00 AM

Read More