Thanks everyone who participate in the contest.
There was no right answer this time. =/
The right answer was :
From the first equation we find the value of a pair of boots as 10. So each boot is 5.
From the second equation we find the value of each kid as 5.
From the third equation we find that 2 newspappers with chestnuts value 4. So each one is 2.
Last equation are:
A boot + A kid with 2 boots and 2 newspappers with chestnuts X 1 newspapper with chestnuts.
If we translate that to numbers we have:
5 + (5 + 10 + 4) X 2
Result = 5 + 19 X 2 = 5 + 38 = 43
Hope everyone is clear with the explanation...
Thanks for participating.
Cheers =)