Question

. In an arithmetic progression, the first term is
a natural number and the common difference is
a whole number. If the first term is decreased by 2
and the third term is increased by 10, the first three
terms would be in geometric progression. The
common difference can be
(A) 4 (B) 8 (C) 16 (D) 14​

Answer 1

the 4th term of an ap is three times the first and the 7th term exceeds twice the third term by 1.Find the first term and the common difference

01