Question

The 5th term of g.p is 48and 7th term is 192 find the series

Answer 1

Evening,
we have A5=48 and A7=192
therefore, We can write them as
a+4d=48......(i)and a+6d=192......(ii)
subtract (ii) from (i)
we get 2d=144
therefore, d=72...(3)
put d in eq. (i)
a+4(72)=48
a=-240......(I)put d in a+d as it is equal to 2nd term
-240+72 = -168
similarly you can put values of a and d and obtain the series.
Hope it helps,
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