Question
The mass of 10 colouring books and 3 guide books is 2 kg. The mass of 4 colouring books and 7 guide books is 1.96 kg. Find the mass of each guide book.
4 m

Click button first when a symbol is required. X

The mass of 10 colouring books and 3 guide books is 2 kg. The mass of 4 colouring books and 7 guide books is 1.96 kg. Find the mass of each guide book.