एक बस टिकट में (3) श्रेणियां (7) पंक्तियां और प्रत्येक पंक्ति में (4) सीटें हैं। एक सीट चुनने के कुल तरीके कितने हैं?
A bus ticket has (3) classes (7) rows and (4) seats in each row. How many total ways are there to choose one seat?
Explanation opens after your attempt
A. (84) तरीके(84) ways
Concept
Class row and seat are three independent levels. The total is \(3 \times 7 \times 4=84\).
Why this answer is correct
The correct answer is A. (84) तरीके / (84) ways. Class row and seat are three independent levels. The total is \(3 \times 7 \times 4=84\).
Exam Tip
श्रेणी पंक्ति और सीट तीन स्वतंत्र स्तर हैं। कुल \(3 \times 7 \times 4=84\) है।
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