Carcass wrote:
14, 23, 32, 41, 50, 59, …
In the sequence above, each term is 9 more than the previous term. What is the 41st term of the sequence?
A) 360
B) 365
C) 369
D) 374
E) 383
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITIONGRE - Math BookThe above posts apply a formula for arithmetic sequences.
However, if you don't know that formula, you can also solve the question by looking for a pattern.
term1 = 14
term2 = 14 +
9 term3 = 14 +
9 + 9term4 = 14 +
9 + 9 + 9 term5 = 14 +
9 + 9 + 9 + 9.
.
.
.
term41 = 14 +
(sum of forty 9's) = 14 +
(360)= 374
= D
Cheers,
Brent
_________________
Brent Hanneson - founder of Greenlight Test Prep