Question

An executive of trident communications recently traveled to london, paris, and rome. He paid 180$, 230$, and 160$ per night for lodging in london, paris, and rome, respectively, and his hotel bills totaled 2660$. He spent 110$, 120$, and 90$ per day for his meals in london, paris, and rome, respectively, and his expenses for meals totaled 1520$. If he spent as many days in london as he did in paris and rome combined, how many days did he stay in each city ?

Answer 1

what have they told you?
l = p+r
180l+230p+160r = 2660
110l+120p+90r = 1520
Now just solve for l,p,r.