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Hussain Mustafa

Hussain Mustafa

Math Tutor

الأسئلة المجابة 43822 | نسبة الرضا 98.6%

Math Tutor

______+______+_____=30 1 3 5 7 9 11 13 15 Fill in...

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إجابة الخبير: Hussain Mustafa

Hussain Mustafa

Hussain Mustafa

Math Tutor

الأسئلة المجابة 43822 | نسبة الرضا 98.6%

Dear Customer
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______+______+_____=30 1 3 5 7 9 11 13 15 Fill in the blanket
The odd number can be written in the form 2 n +1 (n is an integer)                   
so when we sum three odd numbers
let the first number = 2 x+1
the second number =2 y +1
the third number=2 z+1
the sum of  three odd numbers=
2x+1+2 y+1+ 2z+1=
 2x+2y+2z+1+1+1=
=2(x+y+z)+3
=2(x+y+z+1) +1
=  2m+1
and this is an odd number
so the sum of three odd number can not be  an even number
   so the sum of three odd number can not be equal 30 
because 30 is an even number
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Hussain Mustafa

Hussain Mustafa

Math Tutor

الأسئلة المجابة 43822 | نسبة الرضا 98.6%

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