It takes 40 minutes for 8 people to paint 4 walls.
2 answers:
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Answer:
speed acquired by me = 40 miles / hour
speed acquired by my friend = 50 miles / hour
Step-by-step explanation:
Here's the solution :-
time taken by both = 6 hours
( 10 AM - 4 PM )
1. Now, the required speed for me to reach boston at 4 PM is :
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2. Now, the required speed for my friend to reach boston at 4 PM is :
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Answer: 300
Step-by-step explanation:
Given , An electronics retailer receives a shipment of 6,000CDs to distribute to its stores.
i.e, Total CD's he has now = 6,000
Also, a quality control manager inspects a random sample(S) of 40CD's , the number of defective(D) CD's are 2.
Then , the proportion of defective( D) CD's =
Now , the number of CDs in the shipment are likely to be defective = ( Total CD's) x (proportion of defective CD's)
= 6000 x 0.05
=300
Hence, the number of CDs in the shipment are likely to be defective =300