💰 The ratio of Putri’s to Lia’s money is 4 : 7. Together they have 132 dollars.

How many dollars does Putri have?

📚 5 identical books cost 60 dollars.

How many dollars do 8 of the same books cost?

🏗️ 16 workers finish a house in 30 days.

To finish it in 24 days instead, how many workers are needed?

🍞 A recipe for 4 people needs 200 grams of flour.

How many grams of flour for 10 people?

🔵 The ratio of Andi’s to Beni’s marbles is 3 : 5. Beni has 40 marbles.

How many marbles does Andi have?

👨‍👦 The ratio of a father’s to his son’s age is 7 : 2. Their ages differ by 30 years.

How old is the son?

🗺️ A map has scale 1 : 500,000. Two cities are 8 cm apart on the map.

What is the real distance in km?

🐄 12 cows finish a food supply in 20 days.

With 15 cows, how many days will the supply last?