Home › UP Board Class 10 › mathematics › Arithmetic Progressions › In an AP, the common difference d is found as:
In an AP, the common difference d is found as:
A$d = a_{n-1} - a_n + 1$
B$d = a_n - a_{n-1}$
C$d = a_n + a_{n-1}$
D$d = a_n \times a_{n-1}$
Answer & Solution
Correct answer: B. $d = a_n - a_{n-1}$
Common difference is the gap between consecutive terms: d = aₙ − aₙ₋₁.
Related questions
How many two-digit numbers are divisible by 3 (i.e. the AP 12, 15, …, 99)?If the nth term of an AP is $a_n = 3n + 2$, its common difference is:The sum of the first n positive integers is given by:The sum of the first 10 natural numbers (1, 2, 3, …, 10) is:If the first term of an AP is 5 and the common difference is 3, its 4th term is:Which of the following sequences is an arithmetic progression?The common difference of the AP 3, 1, −1, −3, … is:The 10th term of the AP 2, 7, 12, … is: