TCS
Company
Numerical Ability
Permutation and Combination
In a hotel we can order two types of varities,but we can make 6 more variteis in home.One can choose the
four varities with two from hotel as must.Find how many ways one can order.
a)14 b)15 c)56 d)28
Read Solution (Total 17)
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- in question there is 6 more varieties in home,not exactly 6 ,6 more than no of varieties can order in hotel..so it will be (6+2)=8
and ans will be 1*8C2=28 - 8 years agoHelpfull: Yes(20) No(4)
- ans-d)28
as total varities in hotel is 2 and we have to select 2 then 2c2=1.
now from home-total varities are 6 more then=2+6=8.
we have to select 4 varities out of them 2 get selected from hotel then rest is 2 so-8c2=28.
28*1=28 ans.. - 8 years agoHelpfull: Yes(8) No(1)
- 2c2*6c2
=15 - 8 years agoHelpfull: Yes(7) No(6)
- ANS :-D, EXPLANATION 6MORE VARITIES means we can make 6 items more apart from those made in hotel so total item that can be made is 8. now 2 items frm hotel is compulsory so select it by 2c2 ways now left items to be ordered are 2 since we have to order 4 items so select 2 items from rest 8 items made in home by8c2 ways finally multiply both these obtained expressions u will get d option...
- 8 years agoHelpfull: Yes(3) No(1)
- 2C2* 6C2 =15
- 8 years agoHelpfull: Yes(2) No(0)
- from hotel we must order 2 dishes so 2c2=1 way
form home we order in 6c2=15
so that the total number of combination to order dishes is 1*15-1=14
Ans: a) 14 - 8 years agoHelpfull: Yes(1) No(0)
- 6c2*2c2
=15
- 8 years agoHelpfull: Yes(0) No(2)
- 6c2*2c2=15
- 8 years agoHelpfull: Yes(0) No(2)
- 28
except all three - 8 years agoHelpfull: Yes(0) No(0)
- 2C2*6C2=1*15=15
- 8 years agoHelpfull: Yes(0) No(0)
- 2C2*6C2=1*15=15
- 8 years agoHelpfull: Yes(0) No(0)
- can anybody send me TCS placement papers of last 10 years with solutions in order.please mail me at
swarabanu@gmail.com
- 8 years agoHelpfull: Yes(0) No(1)
- anyone having TCS paper of last 10 year plz send me
dubeyji281@gmail.com - 8 years agoHelpfull: Yes(0) No(0)
- 28.....................
- 8 years agoHelpfull: Yes(0) No(0)
- b)15 is answer
- 8 years agoHelpfull: Yes(0) No(0)
- 2c2 * 8c2 = 28
- 8 years agoHelpfull: Yes(0) No(0)
- 2c2*6c2=15
- 8 years agoHelpfull: Yes(0) No(0)
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