General
General
Easy
Question
Write the first three terms of the Arithmetic Sequence, when the first term and common
a1 = 10 , d = 10
- 10 , 20 , 30
- 10 , 20 , 40
- 10 , 100 , 1000
- None of the above
Hint:
The given question is about arithmetic progression. Arithmetic progression is a sequence of numbers where, the difference between two consecutive terms is constant. We are given the first term and the common difference. We are asked to find the first three terms of the progression.
The correct answer is: 10 , 20 , 30
The first term of the progression is a1= 10.
The common difference is d = 10.
Common difference is the fixed difference between the consecutive numbers of the sequence. We have to add the common difference to the preceding term, to get the next term. It can be negative or positive number. It can also have value zero.
a1= 10
a2 = a1 + d
= 10 + 10
= 20
a3 = a2 + 10
= 20 + 10
= 30
So, the progression is 10, 20, 30.
For such questions, we should know about the common difference. We should know that the difference is always constant.
