get app

Go To Your Study Dashboard

If 19th term of a non-zero A.P. is zero, then its ( 49th term ) : ( 29th term ) is :
Option 1)
2:1
Option 2)
4:1
Option 3)
3:1
Option 4)
1:3

Answers (1)

A admin

General term of an A.P. -

$T_{n}= a+\left ( n-1 \right )d$

- wherein

$a\rightarrow$ First term

$n\rightarrow$ number of term

$d\rightarrow$ common difference

$T_{n}=a+(n-1)d ........A.P.$

$T_{19}=0$

$T_{49}-T_{19}=30d$

$=>T_{49}=30d$

$T_{29}-T_{19}=10d$

$=>T_{29}=10d$

$=>T_{49}:T_{29}=30d:10d=3:1$

Option 1)

2:1

Option 2)

4:1

Option 3)
3:1
Option 4)

1:3

Similar Questions

Exams

Articles

Questions