in an ap
the ratio of third and seventh term is 3:7 find the ratio of 4th and 12th terms
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Answered by
0
Answer:-
Ratio of 4th and 12th term
=4/12
=1/3
=1:3
I hope it may helpful to you.....plzz mark me as a brainliest
SeldonAngmo:
hyy wats that now
What do you mean by that
it's an AP
Answered by
2
hi, m not sure.. but ,here it goes
a +2d / a+6d = 3/7. (given)
by cross multiplication, we'll get
7a + 14d = 3a + 18d
4a = 4d
a= d ---------(1)
now, ATQ we gotta find
a+3d / a+12d
= a+3a / a+12a. ( a = d by eqn 1)
= 4/13
= 4:13
a +2d / a+6d = 3/7. (given)
by cross multiplication, we'll get
7a + 14d = 3a + 18d
4a = 4d
a= d ---------(1)
now, ATQ we gotta find
a+3d / a+12d
= a+3a / a+12a. ( a = d by eqn 1)
= 4/13
= 4:13
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