The sum of the even numbers between 1 and n is 79*80, where n is an odd number, then what is...   

Fifteen years back Mrs. John had only three daughters Rachael, Annie, Mary and their combine...   

A says to B: I will be three times as old as you were when I was five years older than you a...   

Is x >1?
A. x3 -1 =0
B. x2+x+1= 1/ ( x3+3x+1)
A.Statement (i) alone is sufficien...   

Higher order problem 1
Is p > q?
(i)   p^3q^2 > 0
(ii) ...   

In a group of 68 students, each student registers for at least one of three courses- history...   

A four sided plot of land has two mutually perpendicular sides of 48m and 64m. The other two...   

What is the distance between A and B?
(i) C is a point lying between A and B. C is 20cms ...   

Ann and Mary can complete a job in 12 days working together. Ann alone can complete it in 16...   

Two trains A and B each of length 100m travel in opposite direction in tracks. The speeds ar...