In how many ways can 4 parrots be put in 4 cages, each meant for a particular parrot, such that none of the parrot goes in it's own cage?
If l, m and n are three integers and x denotes sum of squares of l, m and n and y denotes sum of squares of reciprocals of l, m and n. If p denotes the smallest value of xy, find the value of p
In q. 7 i took proportion to be 3 : 6 :: 1 : 2. I am not getting the correct answer can any one tell me where i am going wrong ? Thanks in advance :)
If |x-4| + |y-4| = 4 ,then how many integer values can set (x,y) have?
Both x^2+16x-q=0 and x^2-11qx+25=0 have real roots. Find the number of positive integral solutions for x.
a)39 b)70 c)60 d)64