Math Problem Solving Strategies
6th Grade Singapore Maths
Lesson 10: Question 3

King Jacob lives alone in a haunted castle because no one else is brave enough to live with him. Every night 280 ghosts, vampires and werewolves run riot in the castle making dreadful noises. There are 15 ghosts. The number of werewolves is 6 times the number of ghosts and vampires put together. At night, King Jacob huddles in his bed with a garlic necklace around his neck and a crucifix hanging on the door. How many more werewolves than vampires are terrorizing the castle?

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