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The lockers at Math Middle School were numbered with consecutive multiples of 3 starting at 57. Students are randomly selected a locker. If there are 376 lockers in the school, what is the chance that Aidan (a student) will be assigned a locker more than 375?

 

I got 131/188.

How I solved it:

57+3n=375
375-57=318

318/3=106. 

When n is 0, itis 57 (locker 1)

When n= 106, it is the 375 (locker 107)
375-107=262. So, 131/188.
Is this right?

 Jul 9, 2020
 #1
avatar+744 
0

actually, pretty detailed and reasonable solving, was your answer correct??

 Jul 9, 2020
edited by whymenotsmart  Jul 9, 2020
 #2
avatar+59 
0

I haven't submitted my homework yet, so I don't know.

ryanthemathboi  Jul 9, 2020
 #3
avatar+744 
0

im pretty sure you have got the right idea and i think you are correct, don't take my word tho, im just a hobo

 Jul 9, 2020
 #4
avatar+27001 
+2

. 375-107=262. So, 131/188.

       there are  376  lockers

 

AND   375-107   not =262         Close !   Just clean it up !   

 Jul 9, 2020
 #7
avatar+59 
0

@ElectricPavlov, When n=106 is the 375th locker, it is the 375. So, 375. My new answer is 67/94. I think that's right.

ryanthemathboi  Jul 9, 2020
 #5
avatar+744 
0

ah, i knew ryan was smart, just so close, my man/friend!!

 Jul 9, 2020
 #6
avatar+59 
+1

But, at least I showed my work :)

 Jul 9, 2020

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