how many watches did he buy?.

Question

Mr. Torres spent P2, 000 on some pens, wallets and watches. He bought the same number of pens and watches. The price of each pens, wallets and watches were P90, P120, P140 respectively. How many watches did he buy? How many items did he buy in all?

Answer 1

1. spend 2,000$... 2. pen kost 90, wallet kost 120, watch kost 140... 3. num pen=num watch, (90+140)*x + 120*y=2,000$... or 230x +120y=2,000$... or y=(2,000$-230x) /120... tri x=1, get y=14.75, tri x=2, get y=12.83333, x=3, y=10.91666.... tri x=4, get y=9...reesunabel anser... y= num wallet...9*120=1080$ x=(num pen+numwatch)=4, so num pen=2 & num watch=2

Comments

The total cost of your answer is less than 2000.. which is wrong