Question

Find the 7th term from the end of the A.P:
4,7,10.............61
.

Answer 1

Answer:

43

Step-by-step explanation:

here, a = 4 and d = 7- 4 = 3

but when we see the series from the end, a= 61 and

d= 4 - 7 = -3.

therefore, the A.P. is 61,....,10,7,4.

thus, the seventh term,n = a + ( n-1)d

= 61+(7-1)(-3)

= 61-18

= 43