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?
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
2 Jan --> 2+1 = 3 As any other date or month would give more than 3
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
What are the largest and smallest 5-digit numbers that satisfy the following conditions?
A. Each digit of the number is a prime digit. B. Each successive pair of digits forms a 2-digit number that is NOT a prime number. C. Each of the prime digits must appear at least once in the 5-digit number.
Can you find the smallest positive number such that if you shuffle the digits of the number in a particular order, the shuffled number becomes twice the original number.
What is the smallest whole number that, when written out, uses all the vowels, A, E, I, O, U and even Y one and one time only each in its spelling?
Below shows the first 5 positive integers formed by using the four mathematical operators (+ - * /) only on the digit 4 four times.
1 = 44 / 44 2 = 4*4 / (4+4) 3 = (4+4+4) / 4 4 = 4 + (4*(4-4)) 5 = (4+(4*4)) / 4
What is the smallest positive integer that cannot be represented using these conditions?
