IBM
Company
Numerical Ability
Number System
Solve this..
........ + ........ + ............ = 30
Fill the boxes using
(1, 3, 5, 7, 9, 11, 13, 15)
Read Solution (Total 23)
-
- 15+factorial(3)+9=30
factorial(3)=6 - 9 years agoHelpfull: Yes(31) No(8)
- odd+odd=even
even+odd=odd
so, 30 is an even number it is not possible
1+3+5=9 3+5+7=15
1+5+7=13 3+7+9=19
1+7+9=17 5+7+9=21
5+9+11=25 5+11+13=29...
6+11+13=5+12+13=5+11+14=30
one must be the odd number - 9 years agoHelpfull: Yes(18) No(6)
- 15+3!+9=30()
so the correct answer is 15+3!+9=30 - 9 years agoHelpfull: Yes(11) No(0)
- (5-3-1)+(7+9)+(15-13)+11=30
- 9 years agoHelpfull: Yes(8) No(4)
- any one explain this problem?
how it is possible... - 9 years agoHelpfull: Yes(7) No(1)
- 11+13+3!=30
- 9 years agoHelpfull: Yes(5) No(0)
- Gouthami is right.
- 9 years agoHelpfull: Yes(2) No(2)
- 15+13+(3-1)=30
- 9 years agoHelpfull: Yes(2) No(1)
- first thing is that sum of 3 odd numbers can never be an even number. so we need to use some operators for this question. the answer can be as - (9+3!)+15=30
other way can be - (3^3)+3=30.(if repetition is allowed).
other way can be (3^2)+1+5+15=30.
so we need to use mathematical operators for this questions.
- 9 years agoHelpfull: Yes(2) No(1)
- U will be amazed to open the page about this riddle.
https://qph.ec.quoracdn.net/main-qimg-9e80bd6a67e0816813216c79858953ec-c?convert_to_webp=true
And solution is : never solve by using base 10, So
13(base 9)+15(base 9)+1(base 9)=30(base 9) - 8 years agoHelpfull: Yes(2) No(0)
- 1+(7*3)+9-5+(2*2)=30
last 3 numbers subtract one by one value is 2.then this two values is multiply. - 9 years agoHelpfull: Yes(0) No(0)
- any one explain this pob
- 9 years agoHelpfull: Yes(0) No(0)
- 15+7.5+7.5
- 9 years agoHelpfull: Yes(0) No(4)
- 15+13+(3-1)=30
- 9 years agoHelpfull: Yes(0) No(0)
- (15-5)+(11-5)+(15-1)=30
- 9 years agoHelpfull: Yes(0) No(0)
- the sum of three odds is always odd so solution not possible
- 9 years agoHelpfull: Yes(0) No(0)
- Why go all the way till factorial theory- if we are allowed an operator: (7/3+11/3)+(15)+(9)=30
- 8 years agoHelpfull: Yes(0) No(0)
- 11+4+15=30
- 8 years agoHelpfull: Yes(0) No(1)
(15-1) + 11 + 5
= 14 + 11 + 5
= 30
Hope everyone get this now....- 8 years agoHelpfull: Yes(0) No(1)
- 3! + 9 + 15
- 7 years agoHelpfull: Yes(0) No(0)
- not possible
because sum of three odd no. will not equal to even number. - 6 years agoHelpfull: Yes(0) No(0)
- 15+5+(11-1)=30
- 5 years agoHelpfull: Yes(0) No(0)
- this can be solved as following.
15+3!+9=30 - 5 years agoHelpfull: Yes(0) No(0)
IBM Other Question
1,2,3,5,7,10,13,17,_
56,89,33,21,57,88,35,19,60,85,30,X