Question

which term of the AP 148,146,144, is 30​

Answer 1

Answer:

a= 148

d= -2

$an = a + (n - 1)d \\ 30= 148 + (n - 1)( - 2) \\ - 118 = - 2n + 2 \\ - 120 = - 2n \\ \bold{\underline{ n = 60}}$

so, 30 is 60th term of this a.p.

hope it helps you.....✌✌

Answer 2

Answer:

60th term

Step-by-step explanation:

l=a+(n-1)*d

a=148

l=30

d=-2

30=148-2n+2

-2n=30-150

n=120/2

n= 60