Question

Q no.30 any one plz help me .

Answer 1

Hey mate !!

here is your answer !!!


given that ratio of ratio of two nth term is =>

(2n + 1): (2n +5) .


we have to find the the value of 4 th term .


now replace the the value of ( n ) with ( 2m -1) .



so we get the ratio that is =>


2 (2m -1) +1 : 2( 2m -1) +5 -------------(1)



but here m = 4 { given }


on putting the value of ( m ) in equation 1


we get


2( 2 *4-1 ) + 1: 2(2*4-1) +5


hence we get ,


15 :19 .


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hope it helps Dear


thanks