DAY 03

Comment

If you think of Marnie as getting one share, then Laura and Kelly each get two shares.

Answer

Marnie's share is £12.

Readers' methods

Dervla J, London SW4:
Try £10 as Marnie's share: 20 + 20 + 10 = 50: too small.
Try £14 as Marnie's share: 28 + 28 + 14 = 70: too big.
Try £12 as Marnie's share: 24 + 24 + 12 = 60: right.

Michael C, Maidenhead SL6:
Let Marnie's share be equal to M so:
Laura's share = 2 x M
Kelly's share = 2 x M
Marnie's share = M.
2M + 2M + M = 60,
so 5M = 60,
so M = 12.
So Marnie's share is £12.00.

Stefan, Brighton BN1:
Use ratio of
L K M
2:2:1, added up equals 5.
£60 / 5 = £12, so Marnie's share is £12.

Eleanor D, Barnes SW13:
There are 5 shares in total, 2 for each of Laura and Kelly and 1 share for Marnie
- therefore divide £60 by 5 = £12
- therefore Marnie who only has 1 share gets £12.