How many integers from 0 to 50

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Re: How many integers from 0 to 50

by Brent@GMATPrepNow » Sat Oct 03, 2020 6:18 am

GMATStudyStudent wrote: ↑
Thu Oct 01, 2020 9:53 am
How many integers from 0 to 50, inclusive, have a remainder of 1 when divided by 3 ?

A. 15
B. 16
C. 17
D. 18
E. 19

Although there are different (and clever) ways to answer this question, I think the fastest (and most accurate) approach is to simply list the values in your head as you count on your fingers (or use a tally sheet)

We get: 1, 4, 7, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49

Answer: C

Brent Hanneson - Creator of GMATPrepNow.com