calendar questions - Wikitechy https://www.wikitechy.com/interview-questions/tag/calendar-questions/ Interview Questions Mon, 13 Sep 2021 09:37:28 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png calendar questions - Wikitechy https://www.wikitechy.com/interview-questions/tag/calendar-questions/ 32 32 Find the non leap year in between 1801 to 1900 ? https://www.wikitechy.com/interview-questions/calendar/find-the-non-leap-year-in-between-1801-to-1900/ https://www.wikitechy.com/interview-questions/calendar/find-the-non-leap-year-in-between-1801-to-1900/#respond Tue, 17 Aug 2021 18:31:31 +0000 https://www.wikitechy.com/interview-questions/?p=1869

Find the non leap year in between 1801 to 1900 ?

Answer : 76

Explanation

  • The important 3 ways is used to find the leap years,
    • The year is evenly divisible by 4
    • If the year can be evenly divided by 100, it is NOT a leap year.
    • If the year is also evenly divisible by 400. Then it is a leap year.
  • So by these rules, the years 400, 404, 408, 800, 896, 1200, 1600, 2000, 2004 and so on are leap years, while 500, 600, 700.. 1100, 2100 aren’t leap years as they aren’t divisible by 400( though divisible by 4 and 100)
  • Between 1795 and 1805 the leap years were 1796 and 1804. 1800 wasn’t a leap year. And between 1995 and 2005 the leap years were 1996, 2000 and 2004.
  • So by this logic NOT ALL 100 years have 24 leap years and 76 non-leap years.
  • For example: Years 1801 – 1900 had 24 leap years:
1804, 1808, 1812, 1816, 1820, 1824, 1828, 1832, 1836, 1840, 1844, 1848, 1852, 1856, 1860, 1864, 
1868, 1872, 1876, 1880, 1884, 1888, 1892, 1896.
]]> https://www.wikitechy.com/interview-questions/calendar/find-the-non-leap-year-in-between-1801-to-1900/feed/ 0 What is the chance that a leap year selected at random contains 53 Fridays ? https://www.wikitechy.com/interview-questions/calendar/what-is-the-chance-that-a-leap-year-selected-at-random-contains-53-fridays/ https://www.wikitechy.com/interview-questions/calendar/what-is-the-chance-that-a-leap-year-selected-at-random-contains-53-fridays/#respond Tue, 17 Aug 2021 18:28:24 +0000 https://www.wikitechy.com/interview-questions/?p=1868

What is the chance that a leap year selected at random contains 53 Fridays ?

A. 1/7

B. 3/7

C. 2/7

D. 2/13

Answer : C. 2/7

Explanation:

  • A leap year there are 366 days means 52 weeks and 2 days. so already we have 52 fridays.
  • Now the rest two days can be (sun, mon), (mon,tues), (tues, wed), (wed, thrus), (thrus, fri), (fri, sat), (sat, sun) so, the probability of 53 fridays = 2/7.
]]> https://www.wikitechy.com/interview-questions/calendar/what-is-the-chance-that-a-leap-year-selected-at-random-contains-53-fridays/feed/ 0 In a particular year, the month of January had exactly 4 Thursdays, and 4 Sundays. On which day of the week did January 1st occur in the year? https://www.wikitechy.com/interview-questions/calendar/in-a-particular-year-the-month-of-january-had-exactly-4-thursdays-and-4-sundays-on-which-day-of-the-week-did-january-1st-occur-in-the-year/ https://www.wikitechy.com/interview-questions/calendar/in-a-particular-year-the-month-of-january-had-exactly-4-thursdays-and-4-sundays-on-which-day-of-the-week-did-january-1st-occur-in-the-year/#respond Tue, 17 Aug 2021 18:26:40 +0000 https://www.wikitechy.com/interview-questions/?p=1867

In a particular year, the month of January had exactly 4 Thursdays, and 4 Sundays. On which day of the week did January 1st occur in the year ?

A. Monday

B. Tuesday

C. Wednesday

D. Thursday

Answer : A. Monday

Explanation:

  • If a month has 31 days, and it starts with sunday, Then Sundays, Mondays, tuesdays are 5 for that month. If this month starts with monday, then mondays, tuesdays, and wednesdays are 5 and remaining days are 4 each. so this month start with Monday
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