FEBRUARY 2016 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 CALENDARS Questions Find No. of Odd days in Centuries

Odd days Question 1: Calculate no. of Odd days in the 1st Century 1st 100 years Step 1: Find no. of Leap & Ordinary years 100/4 25 However, since 100 is not divisible by 400 >25-1 24 Leap years 100-24 76 Ordinary years Step 2: Find no. of Odd days 24 x 2 48 Odd days 76x 1 76 Odd days

Odd days 4876 124 Odd days > 124/7 5 days Answer Step 3. Using Reference table, find last day of the 1st century i.e. 31st December Reference Chart Number of odd days 0 Day of the week Sunday Monday Tuesday Wednesday Thursday Friday Saturday 2 4 5

Odd days Therefore, last day of the 1st Century was Friday (5 Odd days) Answer

Odd days Question 1: Calculate no. of Odd days in the 1st 2 centuries > 1st 200 years Step 1: Find no. of Leap & Ordinary years 200/4- 50 However, since years 100 & 200 are not divisible by 400 >50 - 2 48 Leap years 200 48-152 Ordinary years Step 2: Find no. of Odd days 48 x 2 96 Odd days 152 x 1 152 Odd days

Odd days > 96 + 152 248 Odd days 248/7 3 Odd days Answer Step 3. Using Reference table, find last day of the 2nd century Reference Chart Number of odd days 0 Day of the week Sunday Monday Tuesday Wednesday Thursday Friday Saturday 2 4 5

Odd days Therefore, last day of the 2nd century was Wednesday (3 Odd days) Answer

Odd days Question 1: Calculate no. of Odd days in the 1st 3 centuries > 1st 300 years Step 1: Find no. of Leap & Ordinary years 300/4 75 However, since years 100, 200 & 300 are not divisible by 400 75 -3-72 Leap years 300 72- 228 Ordinary years Step 2: Find no. of Odd days 72 x 2 144 Odd days 228 x 1 228 Odd days

Odd days 144 228 372 Odd days 372/7 1 Odd dayAnswer Step 3. Using Reference table, find last day of the 3rd century Reference Chart Number of odd days 0 Day of the week Sunday Monday Tuesday Wednesday Thursday Friday Saturday 2 4 5

Odd days Therefore, last day of the 3rd century was Monday (1 odd day) Answer

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Bhavuk Pujara

MDI Gurgaon ‘18 Rank 3rd | CAT 98.3 | NMAT 98.8

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Khushi Bhargava

a year ago

maam which book are you using in this video?

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PRIYA Jain

a year ago

Ncert+ Poonam Gandhi+ Subhash dey+ Meena Verma+ my own language

Sai sahu

a year ago

sir aap ne 124/7=5 odd days kese kiya.124/7=17.71 hota hai na.🙏

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Bhavuk Pujara

a year ago

Sai, Odd days is the Remainder when you divide 124 by 7... which is 5 here.

Vimalsingh Singh

2 years ago

100-3 kyu kiya please sir btaiye

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Bhavuk Pujara

2 years ago

Vimal Singh, We’ve solved many examples in this question, please tell me the time stamp of your doubt. Kis time pe aya hai ye step??

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Shashi Shashi

2 years ago

sir 400 century wala questions ma aapna 400/4=1 ordinary year KO ordinary year ma kyu Nahi add Kiya like 303+1 clear my confusion please sir

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Bhavuk Pujara

2 years ago

Hi Shashi, that’s because for a century to be LEAP year, it has to be a multiple of 400... E.g. Years 400 AD, 800 AD, 1200 AD are LEAP years whereas years 100 AD, 200AD, 300 AD etc. are NOT LEAP years.