NumericalEasy1 mark
2(c)
In an Arithmetic Progression (A.P.) the fourth and sixth terms are 8 and 14 respectively. Find the:
common difference
Topic: Arithmetic progression
Previous-year question practice database
Answer
Exam answer
From:
a + 3d = 8
and
a + 5d = 14
Subtract:
2d = 6
d = 3
Answer:
Common difference = 3.
Explanation
The 6th term is two positions after the 4th term, so their difference equals 2d. Since 14 − 8 = 6, d = 3.