(28 votes, average: 3.32 out of 5)Number Puzzle #97
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 Solution
(15-9)+(13-7)+(11-5)+(3+1)+(7+1) = 30
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Hi My answer is
1,3+5,7+9+13+1+30
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
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.
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.
13 + 7 + 3+ 1 + 3!
15+11+3+1=30
5+5+5+9+(3+3)
9+7+13+1=30
The simplest answer
1+1+3+5+11+9=30
1+1+3+5+7+13=30
1,1+1,9+7+15+5
Not possible as 3 odd no.s can not be add up to 30.
Actually (+)he usko left me upar cross line maro yane (4) 1 4+3+5+3+5=30
1 + 1 + 1 + ( + ) = 3()
hence proved 😉
13+7+5+5=30
Actually 1( + ) he + me upar cross line maro yane (4) ok.. Ans is 1 4+3+7+5+1=30 I think.
Hahaha sorry I forgot the six
السلام عليكم it’s 1+3+6+5+15
Here is the correct answer folks :
1 + 11 + 13 = 30
All numbers are in Base 5
Decimal equivalent:
1+ 6 + 8 = 15
8+1+1+13+7=30
1+1+1=30. turn the screen upside down: 03=1+1+1. simple like that
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
7.9+9.1+1+5+7=30
() + (15) + (15) = 30
11base5 + 11base5 + 11base5+ 11base5 + 11base5
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…..
3!+11+13 =30
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.
1+1+3+5+9+11=30
1.11 + 3.15 + 7.13 + 9.11 + 9.5
is not it slightly complicated, we can simply say 11+9+9+.9+.1
We want to know Gaurav Agrawal’s method
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..
(15,15)+(5,15)+(3,3)+(5,3)+(1,1) =30…we can use brackets and commas..
Make it simple (9-3)+(9-3)+(9-3)+(9-3)+(9-3)=30
1+1+(1+1)+11+15=30
(5+1)+(5+1)+(5+1)+(5+1)+(5+1)=30
2+4+6+8+10
7+7+9+5+(3-1) = 30
1+4+11+,+14
it is not possible
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
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………and many more………………………………………………………………………………………………………………………………………
kadak!!!!
1st and 4th answers make sense in absence of any clarification
Only gaurav agarwal only can solve this problem. Becuase they already given there answer in question itself
3 weeks + 1 Day + 7 Days + 13 Hours + 11 Hours = 30 days
Great Answer
how thirty became.[please explain
The only logical answer in this forum, without twisting the number or changing the magnitude of value.
Ans
11+1+11+1+3!=30
3!=3*2*1
3!+3!+3!+3!+3!=30
Can’t get an even number by adding five odd numbers
(9/3)+(15/5)+(13+1/7)+(11)+(11)=30
3+3+2+11+11=30
(9/3),+(15/5),+(13+1/2),(11)+(11)=3+3+2+11+11=30
(11-1), (11-9), 7,(11-1), 1
b=15 )+1+2+3+4+5
=15
=15+15
=30
The Answer is 15 + 15 = 30
They requested to fill the boxes using those numbers… but not “all” the boxes.!!!
good job buddy
Yes fill the boxes means all the
boxes
But u can also use braces not only numbers 😉 “3()”
3! + 3! + 3! + 3! = 30
(15-9)+(13-7)+(11-5)+(3+1)+(7+1)=30
(1+3)+(1+3)+(1+3)+3+15=30
five odd nos. can never be equal to an even no.
It says u can repeat the numbers
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.
3! +5+7+1+11=30
1+7+3.7+15+3.3=30
1+1 = 2 is even
yeah can’t be even
By the way upsc does not ask such questions in mains….nice selling tactic though
Thank you. I was wondering about that
(11-1)+(13-11)+(9-5)+(15-3)+(3-1)=30
great
are out of u mind? huauhahuahuhuhau
(11-1)+(13-3)+(15-5)
Isnt it much simpler?
nice
You need to use all the five brackets…not just 3
Mera copy kar liya