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The riddle of the day #11
posted
February 21 2013 21:13.42
by
Giorgos Lazaridis
Do you want to see the answer before you think of it? Click the following button:
It is not that hard. 9/10 of 1000 is 900, 8/9 of 900 is 800, 7/8 of 800 is 700 and so on until 1/2 of 200 which makes 100...
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At
23 February 2013, 22:15:42
user
silbak04
wrote:
[reply @ silbak04]
No offense, but I see that your solution to this answer is a bit rather tedious than I had anticipated. How I thought of it was:
just taking the product of the first two numbers, and carry the solution through so you end up with:
1/10 of 1000 which is 100.
A bit more in depth explanation:
1/2 * 2/3 * 3/4 * 4/5 * 5/6 * 6/7 * 7/8 * 8/9 * 9/10 * 1000
^ is basically how to look at this, and we can see that
1/2 * 2/3 = 1/3
1/3 * 3/4 = 1/4
1/4 * 4/5 = 1/5
...
1/9 * 9/10 = 1/10
1/10 * 1000 = 100
That's how I arrived at the solution.
At
22 February 2013, 3:48:45
user
Hemal
wrote:
[reply @ Hemal]
It is 100.
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