An artist moves along a hexagonal path of each side 20 m in such a way that for the first 20m he goes with the speed of 20m/s and the next 20 m with the speed of 10m/s.Similarly he continues for the rest of the hexagonal path with the same alternating speeds,i.e,20m/s and 10m/s.The average speed of the artist per round of the circus is: Ans is 13.33

Digits of two three digit numbers are coded with the help of alphabets. It is

A B C

+ A C B

----------------

B C A

All alphabets represent unique digits.

What is value of unit digit of B-C?

A and B are natural no.s such that AB+1 is divisible by 24.Which of the following will definitely divide A+B?

N is a natural no.2N is having 28 factors, and 3N is having 30 factors. How many factors 6N will have?

N=2^8 * 3^10 * 5^8 * 7^2.What is the no. of factors of this number N which are multiples of 360 but not multiples of 540?

How many natural no.s less than 200 will have 12 factors?

A three digit no. is such that number of factors of the original number=Number of factors of the new no. made by reversing the digits(Left one at the right one and vice versa).If the middle no.(Tens place digit)=5, how many such no.s exist?

in chess, a knight moves two squares in one direction and one square in another direction,ending up on the diagonally opposite corner of a 2*3 grid.intervening squares can be occupied.find the maximum number of knights which can be placed on an 8*8 chess board so that no knight threatens another knight(can move into a square occupied by one of the other knights).

N O S I E R

+ A S T R A L

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7 2 5 6 1 3

In the above addition,the sum represents a word.

[1] Each letter represents a different digit.

[2] No letter represents zero.

Q: What word is represented by 725613 ?

plzzzzzzzz explain in detail.don't just give the answer.