The rational form of –25.6875 is :- 1)-(411/16) 2)-(421/16) 3)-(431/16) 4)-(441/16)
What is the largest integer that is a divisor of (n +1) (n+3) (n+5) (n+7) (n+9) for all positive even integers n?
1) 3 2) 5 3) 11 4) 15
If p = x + 1/x then the value of p – 1/p will be -
(1) 3x (2) 3 / x (3) (4)
If a < b < c < d < e are consecutive positive integers, such that b + c+ d is a perfect square and a + b + c + d + e is a perfect cube. What is the smallest possible value of c?
1) 675 2) 576 3) 475 4) 384
If x, y, z are positive real numbers and a, b, c are rational numbers, then the value of is :
(1) –1 (2) 0 (3) 1 (4) none of these