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solve this

This is a discussion on solve this within the Brainteasers forums, part of the Brain Gym category; Using 4 four times can any one make it euals 75. For e.g 4*4+4*4= 75 here 4 is used 4 times( its just a hint)...


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Old 01-15-2007
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solve this

Using 4 four times can any one make it euals 75.
For e.g
4*4+4*4= 75

here 4 is used 4 times( its just a hint)

Last edited by arunjanghu : 01-15-2007 at 06:32 AM.
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Old 01-15-2007
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Re: solve this

Hi friend

the question is not clear ! Please tell me is their something hidden in question, or is it a mathematical question?
I think by using other terms with it( 4 fours) we can get 75!


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Re: solve this

no dear u have to use only 4 with mathematical terms and make it equal to 75
for e.g.
4*4+4*4= 75 this is only a hint to ans. like 4 is used 4 times here
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Re: solve this

hi arun

I think the answer is (4!+4+sqrt 4)/.4 .

Is there any other way ?


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Re: solve this

no its not the correct ans. I think u r not getting my question.
Uhave to use four fours and make it equals 75
(4!+4+sqrt 4)/.4 this is wat u have written this is not equal to 75 morover u can use only expressions like sub ,add, mul, div not square, cube root etc

Last edited by arunjanghu : 01-15-2007 at 08:39 AM.
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Re: solve this

hi arun


i think i have fulfilled the criteria of four 4's


what i have written is (4! + 4 +sqrt 4)/ .4


4! =4*3*2= 24
we add 4 to it

then sqrt 4= 2

therefore it comes out to be 24+4+2= 30

30/.4 (see decimal in front of four)

300/4=75
If you have another answer ,then iam sorry!


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Re: solve this

sorry i could not see decimal its abslutly right
Good job
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