Anna called two people and asked each of them to call to other people if each phone call takes one minute how many phone calls were made during the fifth minute

Question

Need help

Answer 1

The answer is either 16 or 32 depending on

when the 5 minute clock starts....

 

Does the clock start while Anna is talking with the 2 people 

for 1 minute or AFTER she hangs up the phone and those

2 people make their calls?

 

Use this table to figure out your answer:

 

2^0 = 1

2^1 = 2 <---- Anna calls 2 people and asks them to call two others; the call lasts 1 minute

2^2 = 4 <---- minute #2; 

2^3 = 8 <--- minute #3

2^4 = 16 <--- minute #4

2^5 = 32 <--- minute #5

 

OR

 

2^0 = 1 <---- Anna calls 2 people and asks them to call two others; the call lasts 1 minute
2^1 = 2 <---- minute #2;
2^2 = 4 <--- minute #3 
2^3 = 8 <--- minute #4
2^4 = 16  <--- minute #5