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Post by Mr.MSaif on Feb 2, 2015 5:35:55 GMT
بسم الله الرحمن الرحيم The Four Fives Riddle some of you might already be familiar with it, but let's try it anyway.
You have 4 fives ( 5, 5, 5, and 5)
Use all or one math operation (Addition, Subtraction, Multiplication and Division)
to make them 30 (The final result of your calculation)
Ex: 5 x 5 = 25 (2 fives are gone, and only 2 are left + the 25)
25 + 5 = 30 (3 fives are gone, only 1 five is left + the 30)
30 + 5 = 35 (4 fives are now used and the final number is 35, which does not solve the riddle).
give it a try! 
Good Luck! 
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Post by kelvin3g on Feb 2, 2015 8:29:16 GMT
5+5=10+5=15+5=20  maybe |
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Post by kelvin3g on Feb 2, 2015 8:30:37 GMT
5+5=10+5=15+5=20+5=30
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Post by kelvin3g on Feb 2, 2015 8:32:37 GMT
5+5=10+5=15+5=20+5=30
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Post by Mr.MSaif on Feb 2, 2015 8:38:57 GMT
5+ 5=10+ 5=15+ 5=20+5=30!!! 20+5 = 25
give it another try
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Post by Omarg_Ayman6 on Feb 2, 2015 10:13:19 GMT
5+5+5x3+3333333
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Post by Mr.MSaif on Feb 2, 2015 12:46:31 GMT
Nonsense! you know, try better, try harder, look genius! |
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moh
Newbie
Mohamed Essam was here
Posts: 6 
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Post by moh on Feb 4, 2015 18:57:27 GMT
50-5=45, 45-5=40,40-5=35,35-5=30
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Post by noura on Mar 4, 2015 19:03:12 GMT
im not a 10th grader mr.
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Post by noura on Mar 5, 2015 6:12:28 GMT
OH-OH, I KNOW! 5+5+10+5+5=30
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Post by Admin on Mar 8, 2015 5:18:36 GMT
It is easier than you think, only basic math: addition, subtraction, multiplication, and divivsion! Good luck little miss newbie! |
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Post by Admin on Mar 8, 2015 5:28:11 GMT
OH-OH, I KNOW! 5+5+10+5+5=30 That is only 20.. 5+5 is 10 then 2 5s are gone, and 2 5s remain, so it becomes: 10+5+5 which is 20! try more!  |
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Post by elyana on Mar 18, 2015 7:54:47 GMT
5+5+10+5+5=30
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Post by elyana on Mar 18, 2015 7:55:36 GMT
OH-OH, I KNOW! 5+5+10+5+5=30 |
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Post by noura on Apr 22, 2015 8:24:57 GMT
I REALLY know
5 x 5 = 25
25 + 5 = 30
VERY EASY!!!!!!!!!!!!!!!!!!!!!!!!! |
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maybe
