Find Lighter Gold Coin

• Angelina has 25 gold coins. One on those coins is lighter, while the rest of the coins have the same weight. If Angelina has a balance, how would Angelina determine which coin is the lighter one with 3 weightings?
  
  
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• Right Answer of the last Asked Question is here...........
  
  Andy, Mark, Grant, and David were finalists of Golf Trophy. Eighteen holes were played. All of them scored 12 pars. Andy scored 3 birdies. Mark scored 2 eagles. Grant did not have any birdie. David did not have any eagle. One player bogeyed twice. Two players bogeyed thrice. One player bogeyed 4 times. One player birdied once. One player birdied twice. One player eagles once. One player eagles thrice.
  
  
  

  Here is how each players scored:
  
  

  Players --------- Eagles ---------- Birdies --------- Bogeys
  
  

  Andy ---------------1------------------3-----------------2
  
  

  Mark---------------2------------------1-----------------3
  
  

  Grant--------------0------------------2-----------------4

  
  
  
  

Cross Thames and enjoy Party

• Five men and five boys have to cross over the Thames River to attend a birthday party. They have only one small boat with them. Due to small size of the row boat, the boat can not carry more than one man, or more than two boys. Thus, a man riding with a boy would not be possible. What would be the least number of boat trips that would take everyone to the other shore?
  
  
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• Right Answer of the last asked Question is here:
  
  Mrs. Blair has four children, there names are Andy, Grant, Mark, and Crag.
  
  Facts:
  
  Two years ago, Andy was twice the age of Mark.
  
  Four years ago, Grant was twice the age of Mark.
  
  Two years from now, Andy would be twice the age of Crag.
  
  Three years ago, Mark was twice the age of Crag. Mrs. Blair's current age is the sum of all her children's current age. Now find all five people Age?
  
  Carefully read this age situation every year by year.......
  
  
  

  2 years ahead: Andy’s age 14, Grant’s age 12, Mark’s age 9 and Crag’s age 7

  1 year ahead: Andy’s age 13, Grant’s age 11, Mark’s age 8 and Crag’s age 6
  
  

  NOW: Andy’s age 12, Grant’s age 10, Mark’s age 8 and Crag’s age 5
  
  

  Last year: Andy’s age 11, Grant’s age 9, Mark’s age 7 and Crag’s age 4
  
  

  2 years Ago: Andy’s age 10, Grant’s age 8, Mark’s age 6 and Crag’s age 3

  3 years Ago: Andy’s age 9, Grant’s age 7, Mark’s age 5 and Crag’s age 2

  4 years Ago: Andy’s age 8, Grant’s age 6, Mark’s age 4 and Crag’s age 1
  
  
  So Current ages are as under:

  Andy 12, Grant 10, Mark 7, Crag 5.

  Mrs. Blair's current age is 34 which the total of the ages of the 4 children, 12+10+7+5=34.

  
  
  
  
  
  
  

Age Issue

• Mrs. Blair has four children, there names are Andy, Grant, Mark, and Crag.
  
  Facts:
  
  Two years ago, Andy was twice the age of Mark.
  
  Four years ago, Grant was twice the age of Mark.
  
  Two years from now, Andy would be twice the age of Crag.
  
  Three years ago, Mark was twice the age of Crag. Mrs. Blair's current age is the sum of all her children's current age. Now find all five people Age?
  
  
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• Right Answer of last asked Question is here..........
  
  
  Water tank has three inlet pipes and one outlet pipe. One inlet pipe A takes 2 hours to fill the tank. Another inlet pipe B takes 3 hours to fill the tank. The third inlet pipe C takes 4 hours to fill the tank. The outlet pipe D empties the whole tank in 12 hours. If the tank is initially empty, how long would it take to fill the tank if all the inlets and outlet pipes are fully in operation?
  
  1 Hour to fill the Water Tank but How to???.....Let's Calculate
  
  

  The rates for the pipes are as under:

  Pipe A = 1/2 tank per hour
  Pipe B = 1/3 tank per hour
  Pipe C = 1/4 tank per hour
  Outlet Pipe D = -1/12 tank per hour

  1 full tank = rate x time
  1 = (1/2+1/3+1/4-1/12) time
  time = 1 hour

  Therefore, Water Tank completely fill after 1 hour.