Right now Mum is 21 years older then her child In 6 years her child will be 5 times younger than she. Where is daddy?
5*(X+6) = (X+6)+21
4*(X+6) = 21
X+6 = 5.25
X = -0.75
So daddy is at top of mom
I went to the book shop and spent one half of the money that was in my purse.
When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.
I have Dollar 99.98 in my purse when I entered the store.