Question

1 point
24. In ax A.P, if a=1, ax =20 and
S x=399, then x is
O a. 19
O b. 21
O c. 38
O d. 42​

Answer 1

Answer:

1 point

24. In ax A.P, if a=1, ax =20 and

S x=399, then x is

O a. 19

O b. 21

O c. 38

O d. 42