12 Days of Christmas Solution

This is the solution to our advent puzzle from yesterday. Return to our advent calendar here, and find out more about Urmston’s Better tuition centre here.

The total number of gifts my true love sent to me is a whopping 364!  Scroll down to see how to work this out.

Image: Toa55 / FreeDigitalPhotos.net

On the first day of Christmas my true love gave to me a partridge in a pear tree (so I had 1 item).
On the second day of Christmas my generous true love gave to me two turtle doves and a partridge in a pear tree (so I had 3 items).

Day 1 = 1 = 1
Day 2 = 1 + 2 = 3
Day 3 = 1 + 2 + 3 = 6
Day 4 = 1 + 2 + 3 + 4 = 10
Day 5 = 1 + 2 + 3 + 4 + 5 = 15
Day 6 = 1 + 2 + 3 + 4 + 5 + 6 = 21
Day 7 = 1 + 2 + 3 + 4 + 5 + 6 + 7 = 28
Day 8 = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 = 36
Day 9 = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 = 45
Day 10 = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55
Day 11 = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 = 66
Day 12 = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 = 78

Total = 364

Does your child need help with maths? Better Tuition is Urmston’s tuition centre for maths, English, science and entrance exam preparation. We tutor young people aged 5-16. Call us today on 0161 748 3912 to book your FREE assessment, worth £40.

Many thanks to fellow Association of Professional Tuition Centres founders, Step Up Tuition in Timperley, from whom we got the puzzle.  You can visit their APTC page or like them on Facebook here.

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One Response to 12 Days of Christmas Solution

  1. Pingback: 20th December: Christmas Counting | | Better TuitionBetter Tuition

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