Maths Week puzzle for Tuesday

granny

How old is Granny?

Tom asked his Granny how old she was.
Rather than giving him a straight answer,
she replied:

“I have 6 children, and there are 4 years between each one and the next.
I had my first child (your Uncle Peter) when I was 19.
Now the youngest one (Your Auntie Jane) is 19 herself.
That’s all I’m telling you!”

How old is Tom’s Granny?

Write you answer with your name in the comment box below!

 

21 Responses to “Maths Week puzzle for Tuesday”

  1. Anonymous

    My answer for Tuesdays maths puzzle is 66 years old

    Alanna Scappaticci

  2. I think toms granny is 58 . Because ….. Her youngest child is 19 and if there are 4 years between each one that equals to 39
    Maths = 19+4+4+4+4+4=39
    Then add the age she was when she had her first child . “19”
    Maths : 39+19=58
    So 58 is my answer
    NADINE FITZMAURICE.

  3. Ciara Roughneen

    Tom’s Granny is 58 years old. Let’s see why:

    First child born: Granny is 19
    Second child born: Granny is 23 (19 + 4)
    Third child born: Granny is 27 (23 + 4)
    Fourth child born: Granny is 31 (27 + 4)
    Fifth child born: Granny is 35 (31 + 4)
    Sixth child born: Granny is 39 (35 + 4)
    Sixth child is 19: Granny is 58 (39 + 19)