Answer:
The correct answer is 0.1
Step-by-step explanation:
We know the total no of ways in which 3 boys and 3 girls can be seated equals 6!
Now since we want all the 3 girls and the 3 boys to sit together
Let B1 , B2 , B3 be the boys and G1, G2, G3 be the boys and girls respectively
the no of ways to arrange boys = 3!
Similarly the number of ways to arrange girls = 3!
Thus the total no of ways to arrange both boys and girls = 3! x 3!
Thus the probability is given by
Both the computers will take 18 minutes to do the job together.
The slower computer sends all the company's email in 45 minutes.
The faster computer completes the same job in 30 minutes.
Let's take minutes t to complete the task together.
As they complete one job, we get the following equation:
+
=1
LCM of 45 and 30 is:
45 = 3 x 3 x 5
30 = 2 x 3 x 5
LCM = 2 x 3 x 3 x 5 = 90
Now, solving for t;
⇒
Dividing both sides by 5;
We get t = 18
Hence, it will take both the computers 18 minutes to do the job together.
A company has two large computers. The slower computer can send all the company's emails in 45 minutes. The faster computer can complete the same job in 30 minutes. If both computers are working together, how long will it take them to do the job?
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