In a shipment of 120 machine parts, 5 percent were defective. In a shipment of 80 machine parts, 10 percent were defective. For the two shipments combined, what percent of the machine parts were defective?
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
1 (7.0%)
বিস্তারিত ব্যাখ্যা ও বিশ্লেষণ:
Solution:
Defective machine in 1st shipment = 5% of 120 = 6
Defective machine in 2nd shipment = 10% of 80 = 8
Total Defective machine = (6 + 8) = 14
Percentage of combined defective machine = (14/200) × 100% = 7%
