Latest TCS Aptitude Question SOLUTION: a,b and c are non -ve integers. If 28a+30b+31c=365 what is the value of a+b+c? A. Greater than 12 B. Less than 11 C.11 D.12

• Placement Papers
• /
• TCS

TCS Question Papers: TCS Interview Experience(90) TCS Company Profile

(#M40012760) TCS question Keep an EYE

a,b and c are non -ve integers. If 28a+30b+31c=365 what is the value of a+b+c?
A. Greater than 12 B. Less than 11 C.11 D.12

Asked In TCS prasanthi (11 years ago)

Solved snehil Read Solution (13)

Is this Puzzle helpful?   (21)   (5) Submit Your Solution

Read Solution (13) :

snehil  (11 years ago)

12
number of month with in a year

Is this solution Helpfull? Yes (75) | No (2)  

billy  (11 years ago)

a=1
b=4
c=7

a+b+c=12

Is this solution Helpfull? Yes (9) | No (1)  

srikhakollu bharghav  (11 years ago)

snehil you are correct...wonderful answer

Is this solution Helpfull? Yes (5) | No (1)  

raj  (11 years ago)

As 6 couples are there so we can select 1 couple(means 2 persons) by 6C1
Now to select remaining 2 persons we will have 3 cases:-
1. Select 2 males
2. Select 2 females
3. Select 1 male and 1 female(Leaving already selected pertner)
So,
Slection of 4 persons will be:-
for Case 1: 6C1*5C2
for Case 2: 6C1*5C2
for Case 3: 6C1*5C1*4C1 (4C1 is taken bcz we have removed the pweson of same couple)
Now, Selecting 4 persons without any constraint will be 12C4
So, total probability will be:-

[6C1*5C2 + 6C1*5C2 + 6C1*5C1*4C1]/12C4
i.e P = 16/33

Is this solution Helpfull? Yes (4) | No (4)  

RAVINDRA KUMAR YADAV  (11 years ago)

28(a+b+c)+2b+3c=365
put a+b+c=12 then 2b+3c=29,so we have c=7,b=4 and a=1
a+b+c=12

Is this solution Helpfull? Yes (4) | No   

Ankit Gupta  (11 years ago)

nice logic snehil,, thanks..

Is this solution Helpfull? Yes (3) | No (1)  

Piyush Jain  (11 years ago)

28(a+b+c)+2b+3c=365
a+b+c=12
28*12+2b+3c=365
2b+3c=365-336
2b+3c=29
a=2,b=1,c=9

Is this solution Helpfull? Yes (2) | No (1)  

sagar  (11 years ago)

a=1
b=5
c=6
a+b+c=12 ans

Is this solution Helpfull? Yes (1) | No (14)  

ravindra joshi  (11 years ago)

yes the ans is 12.

Is this solution Helpfull? Yes | No (2)  

kartik kothari  (11 years ago)

12
it the mutile so the the number of year comes..

Is this solution Helpfull? Yes | No (1)  

abhishek  (11 years ago)

n1 snehil...
awessome logic..

Is this solution Helpfull? Yes | No   

sagar  (11 years ago)

sorry friend my last ans i wrong.
1+4+7=12 is right

Is this solution Helpfull? Yes | No   

snehil  (11 years ago)

SRIKHAKOLLU :thnx

Is this solution Helpfull? Yes | No   

Please Login to Read Solution.