IIT JEE , AIEEE Forum - Mathematics , Analytical Geometry

bhuwanaroracorroded

statement

we r given a +ve integer r and a rectangular board ABCD wid dimensions AB=20

BC=12 the rectangle is divided into a grid of 20*12 unit squares .the following moves r permitted on d board :

one can move from one square to other only if the distances between the center of d two square is

^{[ ]}r .the task is to find the a sequence of moves leading from d square from d diagonal A as vertex to the square wid B as vertex, then

q1 discuss the task if r is divisible by 2 or 3

a always possible

b never possile

c sometimes possible

d none of these

q2 task is possible if

a r=72

b r=73

c r=74

d r=75

q3 is there a sol. when r=97

a yes

b no

c cant be discussed

d sometimes exists

pannaguma

".........leading from the square from the diagonal A as vertex to the square with B as vertex"

what is this line supposed to mean? plz explain.
or just tell me initial and final points to be moved from/to.......

bhuwanaroracorroded

u have to move from A and have to reach B

bhuwanaroracorroded

hey still unsolved

bhuwanaroracorroded

?????????????

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