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Fill the boxes

(28 votes, average: 3.32 out of 5)

June 27, 2014 by puzzler 78 Comments

Number Puzzle #97

Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15)

Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15)

 

B1 + B2 + B3 + B4 + B5 = 30

Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15)
You can also repeat the numbers.

This question came in UPSC Final Exams held in Dec ’13. You will be glad to note that only Gaurav Agarwal the IAS topper could solve it.

Click here to See SolutionHide
(15-9)+(13-7)+(11-5)+(3+1)+(7+1) = 30

 

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Comments

  1. Jamie says

    July 19, 2016 at 3:02 pm

    Hi My answer is
    1,3+5,7+9+13+1+30

    Reply
  2. abhishek maheshwari says

    July 5, 2016 at 1:48 pm

    Solutions to Fill the boxes.
    I use all numbers one time.
    1+3+5+7+9+11+13+15 = 64
    64-30 = 34. 34/2 = 17
    a+b+c=17 . a = 3, b = 5, c = 9 The boxes are A, B and C.
    One solution is A [15+1 -3] +B [13+7 -5] +C [11 – 9] = 30
    There are a lot of solutions!
    Another solution is : a=1, b= 3, c = 13 A [5+7 – 1] + B [9 – 3] +C [15+11 – 13] = 30

    http://puzzle.queryhome.com/6217/solve-this-%E2%97%BB-%E2%97%BB-%E2%97%BB-30?show=7816#a7816

    Reply
  3. Shehzad says

    February 24, 2016 at 5:35 pm

    11+13+6=30(here when u put 9 upside down you get 6 dont you?) It can be right yeah? I used no notations,signs or whatever ..not even a point.i havnt seen this solution on any other site until the moment am typing this but from now,i really cant say that 😉 if you know what i mean.

    Reply
    • Shehzad says

      February 24, 2016 at 5:38 pm

      Sorry its me …5+7+5+7+6=30
      Sorry i thot there were only three boxes! Cuz thats how the question was originally supposed to be.

      Reply
  4. Rahul Khandekar says

    September 19, 2015 at 3:13 pm

    13 + 7 + 3+ 1 + 3!

    Reply
  5. selim malik says

    July 7, 2015 at 12:22 am

    15+11+3+1=30

    Reply
  6. MUKTI says

    July 5, 2015 at 3:28 pm

    5+5+5+9+(3+3)

    Reply
  7. Aiman says

    June 16, 2015 at 8:52 pm

    9+7+13+1=30
    The simplest answer

    Reply
  8. Nguyen Doan says

    May 21, 2015 at 10:57 pm

    1+1+3+5+11+9=30
    1+1+3+5+7+13=30

    Reply
  9. xxxx says

    May 9, 2015 at 4:58 am

    1,1+1,9+7+15+5

    Reply
  10. Suyash Sharma says

    May 4, 2015 at 5:32 pm

    Not possible as 3 odd no.s can not be add up to 30.

    Reply
  11. Laxmi Alagia says

    May 4, 2015 at 11:46 am

    Actually (+)he usko left me upar cross line maro yane (4) 1 4+3+5+3+5=30

    Reply
  12. srujan addanki says

    May 3, 2015 at 6:58 pm

    1 + 1 + 1 + ( + ) = 3()

    hence proved 😉

    Reply
  13. Aditya Ajay Giri 81149303035 says

    May 3, 2015 at 9:19 am

    13+7+5+5=30

    Reply
  14. Laxmi Alagia says

    May 2, 2015 at 4:24 pm

    Actually 1( + ) he + me upar cross line maro yane (4) ok.. Ans is 1 4+3+7+5+1=30 I think.

    Reply
  15. MohSir Elkhatim says

    April 29, 2015 at 6:28 pm

    Hahaha sorry I forgot the six

    Reply
  16. MohSir Elkhatim says

    April 29, 2015 at 6:22 pm

    السلام عليكم it’s 1+3+6+5+15

    Reply
  17. Guest says

    April 27, 2015 at 1:42 am

    Here is the correct answer folks :

    1 + 11 + 13 = 30

    All numbers are in Base 5

    Decimal equivalent:

    1+ 6 + 8 = 15

    Reply
  18. Dominic Xander Reynaldo says

    April 18, 2015 at 5:01 pm

    8+1+1+13+7=30

    Reply
  19. tiagoryan says

    April 18, 2015 at 4:49 am

    1+1+1=30. turn the screen upside down: 03=1+1+1. simple like that

    Reply
  20. Mohammad Mandurah says

    April 13, 2015 at 5:40 pm

    The puzzle can be solved if we work using base 11. Here is the solution:
    1 + 3 + 5 + 11 + 11 = 30 (all in base 11)

    converted to base 10 the above can be written as follows:
    1 + 3 + 5 + 12 + 12 = 33

    Reply
  21. Alda says

    April 11, 2015 at 7:35 pm

    7.9+9.1+1+5+7=30

    Reply
  22. Jaime says

    April 10, 2015 at 3:13 pm

    () + (15) + (15) = 30

    Reply
  23. Fadl says

    April 10, 2015 at 8:48 am

    11base5 + 11base5 + 11base5+ 11base5 + 11base5

    Reply
  24. Ankita Sharma says

    April 8, 2015 at 11:22 am

    First thing UPSC….. Ask these kind of ques. In main exam.. And if it asked then pls show the method of Gaurav Agarwal.. I really want to see… If it is psbl that there is actually a Agarwal who solved it……. Thank you…….. For not showing the method…..

    Reply
  25. Ankita Sharma says

    April 7, 2015 at 11:46 pm

    3!+11+13 =30

    Reply
  26. Aravindh says

    March 19, 2015 at 11:00 am

    15+15+15+15+15=75

    (15+15)+(15+15)+15=75
    30+(30+15)=75
    30+15=75-30
    30+15=45
    30=45-15
    30=30
    15+15=30
    (3+3+3)+(3+3+3)+(3+3)+3+3=30
    9+9+6+3+3=30.

    Reply
  27. Guest says

    March 7, 2015 at 12:02 am

    1+1+3+5+9+11=30

    Reply
  28. Shankar says

    March 3, 2015 at 2:07 pm

    1.11 + 3.15 + 7.13 + 9.11 + 9.5

    Reply
    • Rakesh Bhatia says

      April 25, 2015 at 12:11 pm

      is not it slightly complicated, we can simply say 11+9+9+.9+.1

      Reply
  29. vaishali says

    February 25, 2015 at 4:57 pm

    We want to know Gaurav Agrawal’s method

    Reply
    • ashish says

      March 19, 2015 at 3:10 pm

      We want to know Gaurav Agrawal’s method
      Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15) Solve this.. ◻➕◻➕◻➕◻➕◻=30 Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15) U can also repeat the numbers..

      Reply
  30. cammy singla says

    February 16, 2015 at 12:17 am

    (15,15)+(5,15)+(3,3)+(5,3)+(1,1) =30…we can use brackets and commas..

    Reply
  31. Sunny Chauhan says

    February 13, 2015 at 2:27 pm

    Make it simple (9-3)+(9-3)+(9-3)+(9-3)+(9-3)=30

    Reply
  32. Suba Saravanan says

    December 18, 2014 at 8:56 pm

    1+1+(1+1)+11+15=30

    Reply
  33. Kamaldeep Singh SEO says

    December 12, 2014 at 1:45 pm

    (5+1)+(5+1)+(5+1)+(5+1)+(5+1)=30

    Reply
  34. clearmind says

    December 3, 2014 at 8:17 am

    2+4+6+8+10

    Reply
  35. shanir kalathingal says

    November 30, 2014 at 7:16 pm

    7+7+9+5+(3-1) = 30

    Reply
    • Puia says

      June 12, 2015 at 1:38 pm

      1+4+11+,+14

      Reply
  36. suresh says

    November 27, 2014 at 6:55 pm

    it is not possible

    Reply
  37. sushant says

    November 26, 2014 at 7:40 am

    THERE ARE MULTIPLE ANSWERS!!!

    1) 30 cm=15 cm+13 cm+ 1cm +7 mm+3mm

    2) 30=15 +9 + 3+ 1.7+1.3

    3) 30=7+5+1+11+3!

    4) 30 years = 15 years + 13 years + 1 year + 7 months + 5 months

    .

    .

    .

    .

    .

    ………and many more………………………………………………………………………………………………………………………………………

    Reply
    • shreya says

      November 28, 2014 at 4:43 pm

      kadak!!!!

      Reply
    • sachiv says

      January 24, 2015 at 6:11 pm

      1st and 4th answers make sense in absence of any clarification

      Reply
    • suresh D says

      June 15, 2015 at 12:17 am

      Only gaurav agarwal only can solve this problem. Becuase they already given there answer in question itself

      Reply
  38. murali says

    November 18, 2014 at 9:48 pm

    3 weeks + 1 Day + 7 Days + 13 Hours + 11 Hours = 30 days

    Reply
    • E. Pillai says

      November 23, 2014 at 7:30 pm

      Great Answer

      Reply
    • suresh says

      November 27, 2014 at 6:50 pm

      how thirty became.[please explain

      Reply
    • Sachiv says

      January 24, 2015 at 6:09 pm

      The only logical answer in this forum, without twisting the number or changing the magnitude of value.

      Reply
  39. jishnu says

    September 21, 2014 at 10:51 pm

    Ans
    11+1+11+1+3!=30
    3!=3*2*1

    Reply
  40. Catcher says

    August 22, 2014 at 4:42 pm

    3!+3!+3!+3!+3!=30

    Reply
  41. Salih Mullan says

    August 8, 2014 at 7:14 pm

    Can’t get an even number by adding five odd numbers

    Reply
  42. drbassvanagowda gm says

    August 1, 2014 at 11:47 am

    (9/3)+(15/5)+(13+1/7)+(11)+(11)=30
    3+3+2+11+11=30

    Reply
  43. drbasavanagowda gm says

    July 31, 2014 at 4:10 pm

    (9/3),+(15/5),+(13+1/2),(11)+(11)=3+3+2+11+11=30

    Reply
  44. Pradnyaa says

    July 1, 2014 at 7:06 am

    (11-1), (11-9), 7,(11-1), 1

    Reply
  45. Krishna says

    June 29, 2014 at 2:15 am

    b=15 )+1+2+3+4+5
    =15
    =15+15
    =30

    Reply
  46. Senthil Kumar says

    June 28, 2014 at 3:58 pm

    The Answer is 15 + 15 = 30
    They requested to fill the boxes using those numbers… but not “all” the boxes.!!!

    Reply
    • neil says

      February 20, 2015 at 11:36 pm

      good job buddy

      Reply
      • yogesh says

        April 14, 2015 at 6:40 am

        Yes fill the boxes means all the
        boxes

        Reply
        • srujan addanki says

          May 3, 2015 at 7:02 pm

          But u can also use braces not only numbers 😉 “3()”

          Reply
  47. Rikin Patel says

    June 28, 2014 at 5:24 am

    3! + 3! + 3! + 3! = 30

    Reply
  48. mugdha kelkar says

    June 28, 2014 at 3:14 am

    (15-9)+(13-7)+(11-5)+(3+1)+(7+1)=30

    Reply
  49. mugdha kelkar says

    June 28, 2014 at 2:59 am

    (1+3)+(1+3)+(1+3)+3+15=30

    Reply
  50. m_rathi says

    June 27, 2014 at 3:15 pm

    five odd nos. can never be equal to an even no.

    Reply
    • Dhvani says

      June 28, 2014 at 2:19 pm

      It says u can repeat the numbers

      Reply
      • Pranjal Haloi says

        July 4, 2014 at 6:15 am

        Even if you repeat, you have only odd numbers. If you are a little aware of maths, 5 off numbers can not be added to get an even number.

        Reply
        • Dixit Chawla says

          July 12, 2014 at 6:57 am

          3! +5+7+1+11=30

          Reply
          • H.S.Malekan says

            July 21, 2014 at 7:00 am

            1+7+3.7+15+3.3=30

        • GX says

          April 10, 2015 at 6:59 pm

          1+1 = 2 is even

          Reply
    • laxman says

      June 28, 2014 at 5:18 pm

      yeah can’t be even

      Reply
  51. deepak says

    June 27, 2014 at 12:55 pm

    By the way upsc does not ask such questions in mains….nice selling tactic though

    Reply
    • Shaziane says

      April 9, 2015 at 9:00 pm

      Thank you. I was wondering about that

      Reply
  52. Srikrishna B says

    June 27, 2014 at 8:45 am

    (11-1)+(13-11)+(9-5)+(15-3)+(3-1)=30

    Reply
    • google says

      July 2, 2014 at 12:01 pm

      great

      Reply
      • Luciana Silva Lua says

        April 13, 2015 at 10:10 am

        are out of u mind? huauhahuahuhuhau

        Reply
    • Abhilash Cherukat says

      April 16, 2015 at 11:57 am

      (11-1)+(13-3)+(15-5)
      Isnt it much simpler?

      Reply
      • bharathi says

        May 1, 2015 at 10:43 am

        nice

        Reply
      • Rajesh Singh says

        July 25, 2015 at 2:25 am

        You need to use all the five brackets…not just 3

        Reply
      • Amardeep Bhardwaj says

        September 4, 2015 at 6:47 pm

        Mera copy kar liya

        Reply

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