Answer / guest

The probability of either the Rook or the Bishop attacking
the other is 0.3611

A Rook and a Bishop on a standard chess-board can be
arranged in 64P2 = 64*63 = 4032 ways

Now, there are 2 cases - Rook attacking Bishop and Bishop
attacking Rook. Note that the Rook and the Bishop never
attack each other simultaneously. Let's consider both the
cases one by one.

Case I - Rook attacking Bishop

The Rook can be placed in any of the given 64 positions and
it always attacks 14 positions. Hence, total possible ways
of the Rook attacking the Bishop = 64*14 = 896 ways

Case II - Bishop attacking Rook

View the chess-board as a 4 co-centric hollow squares with
the outermost square with side 8 units and the innermost
square with side 2 units.

If the bishop is in one of the outer 28 squares, then it can
attack 7 positions. If the bishop is in one of the 20
squares at next inner-level, then it can attack 9 positions.
Similarly if the bishop is in one of the 12 squares at next
inner-level, then it can attack 11 positions. And if the
bishop is in one of the 4 squares at next inner-level (the
innermost level), then it can attack 13 positions.

Hence, total possible ways of the Bishop attacking the Rook

= 28*7 + 20*9 + 12*11 + 4*13

= 560 ways

Thus, the required probability is

= (896 + 560) / 4032

= 13/36

= 0.3611

arrange these alphabets evenymroin in to three words

17 Answers   Avaya,

---

why the students are lag for answering this type of questions?

5 Answers   Honeywell,

---

Tanya wants to go on a date and prefers her date to be tall, dark and handsome. 1. Of the preferred traits - tall, dark and handsome - no two of Adam, Bond, Cruz and Dumbo have the same number. 2. Only Adam or Dumbo is tall and fair. 3. Only Bond or Cruz is short and handsome. 4. Adam and Cruz are either both tall or both short. 5. Bond and Dumbo are either both dark or both fair. Who is Tanya's date?

2 Answers  

---

can anyone provide the answer for the puzzle below There are 25 horses,in each race only 5 horses can participate.how many races are required to select best 5 horses out of 25. need answer with detailed explanation

33 Answers   Wipro,

---

suppose you build a tower interlocking cubes that is 99 cubes high. And suppose you have to paint each square on the tower. How many squares would you have to paint?

9 Answers  

---

---

Ship is 180 miles away from shore. At that time a plane started from shore to pass some information to the ship with 10 times velocity of ship's velocity. At what distance from shore they will meat?

0 Answers   Infosys,

---

Ekta got chocolates to give her friends on her Birthday. If she gives 3 chocolates to each friend, one friend will get only 2 chocolates. Also, if she gives 2 chocolates to each friends, she will left with 15 chocolates. How many chocolates Ekta got on her Birthday? and how many friends are there?

5 Answers  

---

A big cube painted with yellow colour in all sides. if you cut it into 1000 cubes with same dimension. than how many cubes were without painted anyside. explain it?

12 Answers   eBay, eClerx, Sitel, Wipro,

---

Consider a state lottery where you get to choose 8 numbers from 1 to 80, no repetition allowed. The Lottery Commission chooses 11 from those 80 numbers, again no repetition. You win the lottery if at least 7 of your numbers are there in the 11 chosen by the Lottery Commission. What is the probability of winning the lottery?

2 Answers  

---

A worker earns a 5% raise. A year later, the worker receives a 2.5% cut in pay, & now his salary is Rs. 22702.68 What was his salary to begin with?

3 Answers  

---

The letters P, Q, R, S, T, U and V, not necessarily in that order represents seven consecutive integers from 22 to 33. ? U is as much less than Q as R is greater than S. ? V is greater than U. ? Q is the middle term. ? P is 3 greater than S. Can you find the sequence of letters from the lowest value to the highest value?

8 Answers   Global Analytics, UST,

---

"i live in water,if you cut my head i am at your door,if you cut my tail i

9 Answers  

---