Question

The 7 th term from the end of the AP -11 , -8 , -5 , .............., 49 is *

Answer 1

Answer:

Reverse AP : 49, ...... ,-5,-8,-11

a = 49

d = -11 - (-8) = -3

a7 = a + ( n - 1 ) d

= a + ( 7 - 1 ) d

= 49 + (6*-3)

= 49 + (-18)

= 31

7th term of the AP from end is 31.