Question

What rule can be used to find the next term of the arithmetic sequence? 39, 60, 81, 102, 123,

Answer 1

if 39 is a1. 60 is a2 then a2-a1=60-39=21.
81 is a3. a3-a2=21
the difference between two is same in arithmetic. so answer is 144

Answer 2

✌️✌️ Answer ✌️✌️


✔️✔️144✔️✔️



✳️$\textbf{EXPLAINATION}$✳️


⬇️⬇️⬇️⬇️⬇️

The sequence follows the rule that the first number is added by 21 show the next number is the answer.

In easy words every number is added by 21 to get the next number.


▶️=> 39 + 21 = 60


▶️=> 60 + 21 = 81


▶️=> 81 + 21 = 102


▶️=> 102 + 21 = 123


▶️=> 123 + 21 = 144


Therefore the answer is

1️⃣4️⃣4️⃣