4X + 2Y = 142
X + Y = 42
y = 42 -X
4X + 2(42- X) =142
4X + 84 - 2X = 142
2X = 58; X = 29
116 + 2Y = 142
2Y = 26
Interested in Language
Monkeys and parrots are kept inside a cage.Heads and legs are counted as 42 and 142 respectively.
How many monkeys and parrots are inside the cage?
This puzzle is posted for if any correction in the sentences.
Last edited by Rover_KE; 18-Jan-2015 at 22:15. Reason: Deleting unnecessary quote.
As I posted in your thread about the flying birds, you must put a space after every full stop.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.