Total price of 1 pencil and 2 notebooks is 420 yen.
Total price of 4 pencils and 3 notebooks is 930 yen.
Find the price of 1 pencil and 1 notebook respectively.
Answer
Pencil : 120 yen,
Notebook : 150 yen
Solution
Total price of 4 pencils and 8 notebooks is 420 × 4 = 1680 yen.
1680 - 930 = 750 yen is price of 5 notebooks.
Thus 1 notebook is 750 / 5 = 150 yen.
1 pencil is 420 - 150 × 2 = 120 yen.
Total price of 4 pencils and 3 notebooks is 930 yen.
Find the price of 1 pencil and 1 notebook respectively.
Answer
Pencil : 120 yen,
Notebook : 150 yen
Solution
Total price of 4 pencils and 8 notebooks is 420 × 4 = 1680 yen.
1680 - 930 = 750 yen is price of 5 notebooks.
Thus 1 notebook is 750 / 5 = 150 yen.
1 pencil is 420 - 150 × 2 = 120 yen.
