1,3,5,7,9,11,13,15 add any three numbers and get answer 30
Answers
Answered by
5
Solution :
_____________________________________________________________
Given :
To add any 3 numbers to get from the set (1,3,5,7,9,11,13 & 15) to get 30,.
_____________________________________________________________
We know that,
Sum of 2 even numbers & sum of two odd numbers is always even,.
(2 + 2 = 4,. 3 + 7 = 10,etc)
& also
Sum of an odd number & an even number is always odd,.
(3 + 4 = 7 , 5 + 8 = 13,etc)
Hence,.
We know that given set of numbers all are odd numbers,.
So,
Sum of 2 odd number is even &
If we add another odd number, the sum becomes an odd number,.
We know that 30 is even number,.
Hence,
There is no possibilities for the sum of 3 numbers to be 30,.
_____________________________________________________________
Hope it Helps !!
⇒ Brainliest it,(if possible),.
_____________________________________________________________
Given :
To add any 3 numbers to get from the set (1,3,5,7,9,11,13 & 15) to get 30,.
_____________________________________________________________
We know that,
Sum of 2 even numbers & sum of two odd numbers is always even,.
(2 + 2 = 4,. 3 + 7 = 10,etc)
& also
Sum of an odd number & an even number is always odd,.
(3 + 4 = 7 , 5 + 8 = 13,etc)
Hence,.
We know that given set of numbers all are odd numbers,.
So,
Sum of 2 odd number is even &
If we add another odd number, the sum becomes an odd number,.
We know that 30 is even number,.
Hence,
There is no possibilities for the sum of 3 numbers to be 30,.
_____________________________________________________________
Hope it Helps !!
⇒ Brainliest it,(if possible),.
Answered by
2
Answer:
1,3,5,7,9,11,13, and 15
()+()+()=30
If you can only use three of the numbers this is impossible.
They are all odd numbers.
odd+odd+odd=odd, not even and 30 is even
odd+odd=even and even+odd=odd
However,....
If you use some tricks like the following you can do this...
(15)+(5)+(11-1)=30
(3!)+(9)+(15)=30 (3!=3*2*1=6)
(11+1)+(3)+(15)=30
use the 9 upside down !!!
(6)+(9)+(15)=30
(3+7)+(9+1)+(15-5)=30
and so on...
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