### Instruction: A salesman sold twice as much pears in the afternoon than in the morning. If he sold $510 kilograms of pears that day, how many kilograms did he sell in the afternoon?
Answer Choices: (A) 120 (B) 180 (C) 340 (D) 280 (E) 320.### Response: 3x=510
x=170
Therefore, the salesman sold 170kg in the morning and 2⋅170=340 kg in the afternoon. So answer is C.