Answer Posted / aamod joshi

Lets assume that the weights are w1,w2,w3 and w4.

Assume the first code is X1X2X3X4 and second number is
Y1Y2Y3Y4 where X1X2X3X4 + Y1Y2Y3Y4 = 9. e.g. if the weights
are 2,4,2,1 then 1011 = (1*2)+(0*4)+(1*2)+(1*2) = 5 and
0100 = (0*2)+(1*4)+(0*2)+(0*2)= 4 i.e. 1011+0100=4+5=9.

Putting this in mathematical equation,
(W1X1 + W2X2 + W3X3 + W4X4)
+ (W1Y1 + W2Y2 + W3Y3 + W4y4)
= 9

Which means
W1(X1+Y1) + W2 (X2+Y2) + W3 (X3+Y3) + W4 (X4+Y4) = 9

Now, as X1X2X3X4 and Y1Y2Y3Y4 are self-complementing, at a
time either of X1 and Y1 can be 1, the other will be zero.
Same for X2,Y2 and X3,Y3 and X4,Y4. Which further means
that X1+Y1 = 1, X2+Y2=1, X3+Y3=1, X4+Y4=1.

So,
W1(1) + W2(1) + W3(1) + W4(1) = 9

i.e. W1+W2+W3+W4 = 9 thus it proves that sum of the weights
has to be 9.

Why is not creat swap partition in my system.

1823

---

Which is better field cad/cam in mechanical or film editing/animation is better salary wise?

1887

---

376,188,88,40,16,4,-2. Find wrong term in series

4419

---

As a good company employee, can you report your supervisor to the company management if he or she is going against the company interest in his or her actions?

2577

---

How many codes are used when u design a Pressure Vessel

1856

---

can any give an exact example about, resolving the sql errorcode -305

1923

---

if a customer's blackberry stopped syncing their calendar wirelessly what would you do?if a customber deleted mail from his blackberry but it did delete from his mailbox how would ypu resolve this

3087

---

Apply Newton?s method to compute the approximate value of root 2. Start the iteration from x0=1, and obtain two iterations.

2035

---

Suppose you want to form a conceptual model of UML.What elements would you require for this purpose?

2169

---

how can i implement a program of polynomial adding,multiplication,through c language???

1947

---

Whay we use gigabite ethernt

2344

---

Explain i.d.e. for visual c++?

2216

---

how can i install windows-xp operating system in single time to 50 computersconnected in a LAN.

2380

---

what is your career objective?

2402

---

as a fresher what is the format for resume and suggest me some career objectives too........

2383

---