Book Maths Puzzle

There are 8 orators A,B,C,D,E,F,G,H. in how many ways can the arrangements be made so that A always comes before B and B before C?

Read Solution (Total 3)

Book Other Question

There are 12 shot putters in olympic fainals in how many ways can gold,sliver and bronze medals can be awarded?
(a)220 (b)1320 (c)1728 (d)531441 (e)none
How many integer x between 1 to 10000000 will satisfy the equation given below
sqrt(x)+sqrt(sqrt(x))+sqrt(sqrt(sqrt(x)))+sqrt(sqrt(sqrt(sqrt(x))))=A
here A is an integral positive number