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What was the game?
There are 2 guesses which were off by 8. That means exact number must be guess (1) + 8 & guess (2) - 8. So those 2 guess must differ by 16 from each other. And there are 2 guesses in given list differing by 16 & those are 22 & 38. Hence the exact number of apples in a covered basket is 30. Let's verify with all guess & errors.
22 + 8 = 30
24 + 6 = 30
29 + 1 = 30
33 - 3 = 30
38 - 8 = 30
At the local model boat club, four friends were talking about their boats. There were a total of eight boats, two in each color, red, green, blue and yellow.
1. Each friend owned two boats.
2. No friend had two boats of the same color.
3. Alan didn't have a yellow boat.
4. Brian didn't have a red boat, but did have a green one.
5. One of the friends had a yellow boat and a blue boat and another friend had a green boat and a blue boat.
6. Charles had a yellow boat.
7. Darren had a blue boat, but didn't have a green one.
Can you work out which friend had which colored boats?
Know here step by step process of finding owners!
Source
What's the task given?
First let's rewrite all the clues here.
1. Each friend owned two boats.
2. No friend had two boats of the same color.
3. Alan didn't have a yellow boat.
4. Brian didn't have a red boat, but did have a green one.
5. One of the friends had a yellow boat and a blue boat and another friend had a green boat and a blue boat.
6. Charles had a yellow boat.
7. Darren had a blue boat, but didn't have a green one.
Let's make 2 set of 4 colors of boats. Below is the table with owners in row & color of boats in columns.
Below are clues which giving clear idea of owner of particular colored boat.
3. Alan didn't have a yellow boat.
4. Brian didn't have a red boat, but did have a green one.
6. Charles had a yellow boat.
7. Darren had a blue boat, but didn't have a green one.
We will fill this table one by one as per clues given.
Now, consider the first part of this clue.
5. One of the friends had a yellow boat and a blue boat.
Now Alan won't have this combination as he doesn't own yellow boat at all. The Brian already had green boat, so he too can't have this combination as in that case he would own 3 boats.
Let's assume Charles had this combination then other would have boats as below.
Two friends Sachin & Rahul are living in two different towns. Sachin wanted to send few diamonds to Rahul but there is big problem. Both Sachin & Rahul have lot's of boxes which can be locked with locks & keys. Both have multiple locks. There is only 1 courier service which can ship those diamonds & there is no other way. Even worse is that workers at that courier service have bad habit of stealing the goods from packages. But one good thing is that they don't take efforts to break locks if boxes being shipped are locked.
How Sachin should send diamonds to Rahul?
This is what Sachin should do?
