Question

x+ y + z =15 if 9,x,y,z,a are in A.P., while
1/x+1/y+1/z=5/3
of a will be
if 9, x, y, z, a are in H.P., then the value of a will be​

Answer 1

Answer:

9,x,y,z are in A.P

then,

the value of x=7

y=5

z=3