At a dinner party every two guests shared a bowl of rice between them, every three guests shared a bowl of vegetable between them and every four shared a bowl of meat between them. There were altogether 65 bowls. How many guests were present at the party?
A
60
B
65
C
90
D
100
Correct Answer: 60
Bowl = Guests 30 × 2 = 60 (rice) 20 × 3 = 60 (vegetable) 15 × 4 = 60 (meat) so 30 + 20 + 15 = 60