Interested to Buy Any Domain ? << Click Here >> for more details...
In how many ways 4 letters can be posted in two post boxes?
- 13 Answers
- 24065 Views
- TCS, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / ram
If four letters are different, then with each letter there
are two possibilities, i.e. A letter can be posted in either
of two mailboxes.
Total no. of ways = 2^4 = 16.
| Is This Answer Correct ? | 21 Yes | 9 No |
Answer / wwwwwwwwwwwwwww
matherchod log nahi pata hao to galat ans kahe ko post krta be
| Is This Answer Correct ? | 7 Yes | 2 No |
Answer / binesh
I think the robbins way
is right. But i couldnt
under stand why did
he multiply the result
by 2
the chances are
none in the fist box
and all in the other
box=4C0=1
1 in fist and 3 in
second=4C1=4
2 in first and 2 in
second=4C2=6
3 in first and 1 in
second=4C3=4
4 in fist and none in
second=4C4=1
so net chance is
4C0+4C1+4C2+4C3+4C4=16
| Is This Answer Correct ? | 4 Yes | 2 No |
Answer / koustav chakraborty
as for question have to post atleast 1 letter in 2 box.. i think the posibilty to post 4 letter in 2 box is 3 ..cause
1st box 1 letter and 2nd box 3 letter,
1st box 2 letter and 2nd box 2 letter,
1st box 3 letter and 2nd box 1 letter.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / lester
If the letters are thought to be unique than the answer is: 2*2*2*2=8
If the letters are thought to be identical(as in spam mails) than the answer is:
(5,0,0) (4,1,0) (3,2,0) (2,3,0) (1,4,0) (0,5,0)
(4,0,1) (3,1,1) (2,2,1) (1,3,1) (0,4,1)
(3,0,2) (2,1,2) (1,2,2) (0,3,2)
(2,0,3) (1,1,3) (0,2,3)
(1,0,4) (0,1,4)
(0,0,5)
1+2+3+4+5+6 = 21 ways
~Lester
| Is This Answer Correct ? | 1 Yes | 2 No |
Answer / karthika
Assume 1st box 4 letter and 2nd box no letter,
1st box 1 letter and 2nd box 3 letter,
1st box 2 letter and 2nd box 2 letter,
1st box 3 letter and 2nd box 1 letter,
1st box not post and 2nd box 4 letter,
1st box 3 letter and 2nd box 1 letter,
so totally 6ways
| Is This Answer Correct ? | 4 Yes | 9 No |
Answer / priya
1 way=1-3
2 way=2-2
3 way=3-1
4 way=4-0
5 way=0-4
answer 5
| Is This Answer Correct ? | 2 Yes | 8 No |
A person is 80 years old in 490 and only 70 years old in 500 in which year is he born?
2x-y=4 then 6x-3y=?
26 Answers ABC, Cap Gemini, Ebix, Infosys, Polaris, ProKarma, TVS,
I have applied for AAI Jr.Executive for 2009 batch.plz tell me the syllabus for that paper.my id is rahulaswal07@gmail.com
0 Answers AAI Airports Authority Of India,
There are two glasses A and B. A contains orange juice and B contains apple juice in same quantity. Some amount orange juice from glass A is transferred to glass B. The juice in glass B is mixed well. Then again the same amount of juice from B is transferred to A. Compare the quantities of apple juice in A and orange juice in B.
1,4,13,31,112,?
The ratio of cost price to the market price of an article is 4: 5. What is the profit percentage if the ratio of the profit percentage on selling the article to the discount allowed on it is 5: 4?
Dear Sir/ Madam, Kindly send me the model question answers for RRB-Technician Signal(Physics/Maths) to saranya67veena@gmail.com
A team P of 20 engineers can complete a task in 32 days. Another team Q of 16 engineers can complete the same task in 30 days. Then the ratio of working capacity of 1 member of P to that of a member of Q is:
Hi...Does anyone know wat is the paper pattern for NIC( National Informatics Center) paper pattern??? Please let me know by this week..Thanks.
A car has run 10000 miles using 5 tyres interchangably,To have a equal wornout by all tyres how many miles each tyre should have run. answer 4000 miles/tyre
where is genarak driving aptitude
please send me the sbi questionpaper of last year for the post of clerk send it to shubha_malapur@yahoo.co.in
English 
