X school purchased 357 pen and 323 rubber and 289 pencils.The total bill amounts to 4054.5.On the other day school Y purchased 221 pens,247 rubbers and 273 pencils which amounts to 3074.5.Find the price of 100 pens ,100 rubbers and 100 pencils

Question

anonymous · Answer

Let the pen be x , rubber be y and pencils be z:

357x + 323y + 289z = 4054.5

221x + 247y + 273z = 3074.5

How can you find three variables from two equations??

anonymous · Answer

Let the cost of 1 pen , 1 pencil, 1 rubber be x, y,z 
357x+ 289y+ 323z =4054.5

anonymous · Answer

only possibility for solving is add or subtracting 2 equations but it does'nt work:(

anonymous · Answer

Yes..
It is unsolvable in my opinion..

anonymous · Answer

its a question of one of the competative exams CAT