each person had $1.25
Because:
There are four of them, therefore $1.25*4=5
They then each double the previous amount, so: 5*2*2*2*2=$80
or in reverse:80/2/2/2/2=5
5/4+1.25
A, B, C and D each had some money. D doubled the amounts with the others. C then doubled the amounts with others. B then doubled the amounts with the others. A then doubled the amounts with the others. At this stage, each of them has $80. Find the initial amount with C.
Help me!!
1 answer
1 answer