Question

Can you solve this
[] +[]+[]=30

fill the boxes using
1,3,5,7,11,13,15

you can also respeat the numbers...
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Answer 1

Step-by-step explanation:

These boxes should be filled with odd numbers.

We know that odd numbers are of the form 2n+1.

Let the numbers be 2a+1,2b+1,2c+1

Sum is

2a+1+2b+1+2c+1

2a+2b+2c+3

2a+2b+2c+2+1

2(a+b+c+1)+1

Let a+b+c+1 be k

2k+1

So, the result which we get is a odd number

But 30 is even number.

Therefore,there is no possibility.