Question

c) 2.
282) The average age of a family of 6 members is 25 years. The
average age of the family, after a 45 Years old member leaves :s
a) 20 years
6 21 years c) 22 years d) 23 years
183) The average of 3 numbers is 9 and that of first two is 13, the
third number is
a) 1
b)-1
d) - 2
184) The X and Y axis divide the plane of a graph in to
quadrants
a) 3
by 4
c) 1
d)2
185) In a graph X and Y axis intersect each other at 'O’, this point
is called
a) Center point
6 fixed point
origin
d) none​

Answer 1

Answer:

21 years

1 is the 3rd number

4 quadrants

origin