Level 3 PSLE Matthew spent 37 of his money to buy 6 identical pens. He spent the rest of his money to buy another 4 such pens and 3 identical files.
What fraction of Muthu's money was spent to buy the 3 files?
Give your answer in the simplest form
For every 5 files bought, 1 additional file was given free. How many files would Matthew get in total if he were to spend all his money to buy files only?
Level 3
At first, a pot contained 25 ℓ of water. Keisha added another 12 ℓ of water into the pot. Then she used 29 of all the water in the pot. How much water did Keisha use? Express your answer as a fraction in its simplest form.