Question

6. Find the 10th term
of an ap
from the last

3, 8, 13 etc .... 78

Answer 1

Answer:

33

Step-by-step explanation:

Series is 3,8,13...78

a = 78, d = 3 - 8 = -5.

tn = a + (10 - 1) * d

tn = 78 + (10 - 1) * (-5)

tn = 78 + 9 * -5

tn = 78 - 45

tn = 33

so, 10th term of an AP from last = 33.

#Hope my answer helped you.