TCS
Company
Numerical Ability
Permutation and Combination
A person has in is bag 14 notes of Rs. 10 each, 9 notes of Rs. 5 each, 4 notes of Rs. 2 each and 7 notes of Re 1 each. In how many different ways can be contribute to a charitable find?
A. 599
B. 5999
C. 3528
D. 600
E. 2579
Read Solution (Total 7)
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- As per the questions,
14 notes of Rs10...so person can contribute Rs10 note in 14 ways.if person dont give Rs 10 note then number of ways of contribution are 14+1=15.
9 notes of Rs 5...so person can contribute Rs5 note in 9 ways.if person dont give Rs 10 note then number of ways of contribution are 9+1=10.
and so on..
SO the number of ways can be contribute to a charitable fund 15*10*5*8-1=5999(option b) answer
here -1 is used because person must have to use atleast one note.
Here SANDEEP is correct.. - 10 years agoHelpfull: Yes(32) No(1)
- 15*10*5*8-1=5999
- 10 years agoHelpfull: Yes(9) No(5)
- option b. 15*10*5*8 -1= 5999
- 10 years agoHelpfull: Yes(2) No(3)
- JOYDEV DINDA FACTORIAL-1
- 10 years agoHelpfull: Yes(1) No(4)
- 14 notes of Rs.10 can be distributed in 14 ways....but there is also a way in which the person distributes no rs 10 notes.
so.....14 notes can br distributed in (14+1) = 15 ways........
similarly,,,,,9 notes of Rs 5 ,4 notes of Rs 2,and 7 notes of Rs 1 can be distributed in (9+1) ,(4+1) and (7+1) ways respectively.
Hence,Total ways are----15*10*5*8==6000...But,,This also includes a way in which none of the notes of any kind has been distributed.
So,The final result will be::(6000-1) i.e 5999!!!!!!!!!!1 - 9 years agoHelpfull: Yes(1) No(0)
- 14C1*9C1*4C1*7C1 = 3528 is right ans
- 10 years agoHelpfull: Yes(0) No(7)
- ans is 3528
- 9 years agoHelpfull: Yes(0) No(2)
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