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What are the birthdays that share the second smallest birthday number?

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A "birthday number" is defined as follows: add all digits of the month and day of the birthday. For example, November 24th has "birthday number" 1+1+2+4=8.

What are the birthdays that share the second smallest birthday number?

posted Nov 2, 2015 by Basabdatta Mukherjee

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3 Answers

0 votes

second smallest birthday number is 03
and birthdays are
(1) Jan 2nd :0+1+0+2=03
(2) Jan 11th :0+1+1+1=03
(3) Jan 20th :0+1+2+0=03
(4) Feb 1st :0+2+0+1=03
(5) Feb 10th :0+2+1+0=03
(6) Oct 2nd :1+0+0+2=03
(7) Oct 11th :1+0+1+1=03
(8) Oct 20th :1+0+2+0=03
(9) Nov 1st :1+1+0+1=03
(10) Nov 10th:1+1+1+0=03

answer Nov 3, 2015 by Jaikumar Bhatia
0 votes

2 Jan --> 2+1 = 3
As any other date or month would give more than 3

answer Nov 3, 2015 by Padmanabha Vyasamoorthy
0 votes

1/1 = 1 + 1 = 2 is the lowest number.
Hence we need the second lowest number i.e. 3
The following dates will be satisfying this (DD/MM format)
2/1, 11/1, 20/1, 1/2, 10/2. 2/10. 20/10, 1/11 & 10/11

answer Nov 8, 2015 by Naveen Chopra



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