question: How many lumens per watt does a typical 100-watt , 120-volt lamp produce ?
answer: 17.1 lumens per watt
turker_answer: A typical 100-watt , 120-volt lamp will produce 17.1 lumens per watt .
rule-based: 17.1 lumens per watt does a typical 100-watt , 120-volt lamp produce .