## Problem Of The Week 37

**What is the sum of the smallest and the largest number of fridays the 13th that can occur in any year ? **

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For All Your Quant Queries

**What is the sum of the smallest and the largest number of fridays the 13th that can occur in any year ? **

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Written by Implex

October 1, 2008 at 8:55 pm

Posted in Combinatorics, Problem of the week

Tagged with Combinatorics, Problem of the week

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max number:3

min number:1

correct????

AnkajOctober 2, 2008 at 2:39 am

answer is correct , put a solution man !! 🙂

outtimedOctober 2, 2008 at 5:03 am

well i just calculated those…

in leap year…there can be minimum of 1 friday…and in any other year..we always have Feb and March with same days…the other one comes in nov…

😦

13+28K…will result in Friday….

AnkajOctober 2, 2008 at 6:24 am

For 13 th of a month to be a friday , first day of that month will have to be sunday. The max and min possibilities for any day to be the first day of the month in a year are 3 and 1 respectively. Hence the sum = 3+1=4

tyroOctober 2, 2008 at 8:16 am