Latest TCS Aptitude Question SOLUTION: 15. 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 chari

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15. 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

Asked In TCS Soumen Maity (9 years ago)

Solved RAHUL KUMAR Read Solution (10)

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Read Solution (10) :

RAHUL KUMAR  (9 years ago) Best Solution

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.

Is this solution Helpfull? Yes (33) | No (11)  

HEENA SHARMA  (9 years ago)

I'll explain why rahul put n+1 becoz there is a rule in p&c that " total number of selection of zero or more things from n identical things=n+1"
so if person dont give rs 10 note then number of ways of contribution are n+1 i.e 14+1=15
same with other cases...

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Paras Mani Jain  (9 years ago)

(14+1)*(9+1)*(4+1)*(8+1)-1=5999
he can give Rs10 notes in 14 ways and either he dont cont give Rs10 note
So it is equal to =(14+1)
same goes other Rs
1 is subtracted because the person must have to use atleast one note.
as said by RAHUL

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sarepallilasya  (9 years ago)

Mr.Rahul would u plzzz explain it

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arun kumar ravi  (9 years ago)

=(15*5*10*8)-1
=5999

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Paras Mani Jain  (9 years ago)

14*9*4*7=3528

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

RAKESH KUMAR  (9 years ago)

rahul kumar can u plzz explain y we need to add +1 to find the ways
as 10 notes is contributed in 14 ways na

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ram kumar t  (9 years ago)

c)3528.....14*9*4*7

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Sudhir Gupta   (9 years ago)

5999 is d ri8 answer

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koyel  (9 years ago)

plz expln it

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