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A group of friends went to a hotel for Dinner. After having their dinner the Bill Amount was of Rs 2400. So they decided to distribute it into equal amount for each. In the group two friends forget to bring their purses along with them. So later on it has been decided that Rs 100 has to be paid more by the other friends on calculated amount. So total how many friends were there in the Group?
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A
8
💡 Explanation:
Let the total friends be n. Each should pay 2400/n initially. When 2 friends don't pay, (n-2) friends pay (2400/n + 100) each. Setting up: (n-2)(2400/n + 100) = 2400. Solving gives n = 8. With 8 friends, each pays 300. When 2 don't pay, 6 friends pay 400 each - which is 100 more.