Which of the following is a sequence with COMMON DIFFERENCE 4?
A1, 4, 9, 16, …
B3, 7, 11, 15, …
C2, 4, 8, 16, …
D5, 9, 11, 15, …
Answer & Solution
Correct answer: B. 3, 7, 11, 15, …
Common difference = each term − previous term. For 3, 7, 11, 15, …: differences are 4, 4, 4, … — constant. This is an arithmetic sequence (progression) with first term 3 and common difference 4.
Related questions
Find the sum: 1 + 3 + 5 + 7 + … + 99 (first 50 odd numbers):In a sequence, t₅ = 17 and t₁₀ = 37. If it is arithmetic, what is the common difference?In the sequence 1, 4, 7, 10, 13, …, what is the SUM of the first 5 terms?What is the SUM of the first 10 natural numbers (1 + 2 + 3 + … + 10)?What is the explicit rule (formula) for the nth term of the sequence 4, 7, 10, 13, …?For the sequence 7, 12, 17, 22, …, what is the 20th term?If the explicit rule for a sequence is uₙ = 3n + 2, find u₁₀:The 6th triangular number is: