___+____+____=30
Fill the blanks with 1,3,7,9,11,13,15
(numbers can be repeated)
Fast please?
Answer :
We have : ____ + ____ + ____ = 30
And we can fill these three blank space by three odd numbers those are less than 15 .
SO we can fill 1 , 3 , 5 , 7 , 9 , 11 , 13
And we know If we add any odd numbers in odd numbers times ( As here we have three spaces ) , So we get a odd number . But 30 is a even number .
So, we fill these spaces , As :
7 + 13 + ( 3 + 7 ) = 30 ( Ans )
Here we will get the answer 30 only when we will use 3 operators and we cannot show the sum equal to 30 using two operators only because then sum of three odd numbers cannot be even numbers.
We have : ____ + ____ + ____ = 30
And we can fill these three blank space by three odd numbers those are less than 15 .
SO we can fill 1 , 3 , 5 , 7 , 9 , 11 , 13
And we know If we add any odd numbers in odd numbers times ( As here we have three spaces ) , So we get a odd number . But 30 is a even number .
So, we fill these spaces , As :
7 + 13 + ( 3 + 7 ) = 30 ( Ans )
Here we will get the answer 30 only when we will use 3 operators and we cannot show the sum equal to 30 using two operators only because then sum of three odd numbers cannot be even numbers.