Question

May has 10 fewer marbles than Albert. May has 5 more marbles than Jenny. Albert gives4 marbles to Jenny. May gives another 6 marbles to Jenny. Jenny has 13 marbles now.

Find the number of marbles each of them had at first.
Jenny had 3 marbles.
May had 8 marbles.
Albert had 18 marbles.

10 years ago