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