The average of two numbers is `X Y` . If one number is `X` , the other is `Y/2` (b) `Y` (c) `2X Y-X` (d) `X(Y-1)`

The LCM of two numbers is (x +y) and their HCF is p (x- y). If one of the number is 'p' then the other number is

There are 4 consecutive odd numbers (x_1, x_2, x_3 a n d x_4) and three consecutive even numbers (y_1, y_2 a n d y_3) . The average of the odd numbers is 6 less than the average of the even numbers. If the sum of the three even numbers is 16 less than the sum of the four odd numbers, what is the average of x_1, x_2, x_3 and x_4 ? (a) 30 (b) 38 (c) 32 (d) 34

The average of six numbers is x and the average of three of these is y. If the average of the remaining three is z, then x=y+z (b) 2x=y+z( c) x=2y+2z(d) None of these

The average of x numbers is y^(2) and the average of y numbers is x^(2) . Find the average of all the numbers taken together

L.C.M.of two prime numbers x and y(x>y) is 161. The value of 3y-x is (a)-2(b)-1(c)1 (d) 2

If x and y are two co-primes,then their LCM is xy(b)x+y(c)(x)/(y) (d) 1

If sum of two numbers x and y is equal to double of x,then value of y will be (A) y = x (B)y>x (C)y