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avatar+311 

John had some marbles. He lost \( {2 \over 7}{}{}\) of the marbles and gave 48 marbles to his

friends. He was then left with \( {1\over 3}{}{}\)of the marbles. He packed these into 10 packets.
Some of the packets contained 3 marbles while the rest contained 5 marbles.

     (a) How many marbles were packed into the 10 packets?

     (b) How many packets contained 3 marbles?

 
 Sep 14, 2021
 #1
avatar+34316 
+2

x = original count of marbles

   losing 2/7ths means he has 5/7 ths of original left

 

5/7 x - 48 = 1/3 x

x = 126

 

 

at the end he has 1/3 of the original amount = 42 marbles

   3   3    3    3   +   5   5   5   5  5  5    

 
 Sep 14, 2021
 #2
avatar+311 
+1

Thankyou

 
Tgfromthe4  Sep 14, 2021

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