Question

For AP : a,a2,a3,.... .If a4/a7=2/3 ,find a5/a6 ?

Answer 1

Answer:

7/8

Step-by-step explanation:

a4/a7=2/3

(a+3d)/(a+6d)=2/3

3(a+3d)=2(a+6d)

3a+9d=2a+12d

3a-2a=12d-9d

a=3d

Now a5/a6=(a+4d)/(a+5d)

=(3d+4d)/(3d+5d)

=7d/8d

=7/8