# Solve this.. ◻ ➕ ◻ ➕ ◻=30 Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15) U can also repeat the numbers. This question came in UPSC Final Exams held in Dec 2013. You will be glad to note that only Gaurav Agarwal (IAS Topper) could solve it.

2
by anulovedatta40

2015-08-06T21:03:23+05:30

### This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
⇒Let me first say you that , when we add odd numbers  ,we do not get a result of even number .

To do this sum , We can solve only through Factorial method ;-

15 + 9 + 3 ! = 30

Here , 3 ! will be equal to -  1 ×2 ×3  .

- Therefore , The answer is - 15 + 9 + 3 ! = 30
I still didn't get it?
2015-08-07T10:30:23+05:30

### This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
The sum of three odd numbers gives an odd number
So, the sum of 3 given odd numbers doesn’t results 30
So, it is an impossible factor
here we can't use 3! too
because 3! [3×2×1] results a even number 6
so we can’t use it.
If there will be an allowance of factorials, then the answers will be
3! + 15 + 9 =30

3! + 11 + 13 = 30