Question

The average of n numbers is a. If one of the

numbers, y, is replaced by x, the average becomes

b. Find the relation between n, a, x, y and b.

(A)

a b

x y

n

1

−

−

= (B)

y x

a b

n

1

−

−

=

(C)

a b

x y

n

1

+

+

= (D)

x y

a b

n

1

+

+

=​

Answer 1

Answer:

xyab" (and any subsequent words) was ignored because we limit queries to 32 words.