Answer:
1/3
Step-by-step explanation:
pic bleow
also can u help or someone
draw three cells in parallel, two light bulbs (loads) in series, with one switch.
You are correct C. is the answer.
Reduce the fraction with 2
4 Americans can arrange themselves in 4! ways.similarly ,3 Frenchmen can arrange themselves in 3! ways.3 Englishmen can arrange themselves in 3! ways.now these 3 groups of same nationality people can be arranged among themselves in 3! ways.so total number of ways = 3!4!3!3!