Question

2) What is the common difference of the A.P. 145, 13, 11.5, 10,......?
A) 1.3
B) 0.5
C)-1.5
D)-2.5​

Answer 1

Answer:

1.5

Explanation:

1.5 is the common answer

Answer 2

Answer:

A= 145

D= a²-a¹

= 13-145

D = 132

a³-a²

= 11.5 - 13

= -1.5

a⁴-a³

= 10 - 11.5

= -1.5