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Dodo has twice as many green pencils as red pencils. WHEN DODO LOST 42 green pencils he had half as many greens pencils as red pencils. How many pencils did he have altogether?

 Mar 11, 2020
 #1
avatar+22085 
+1

g = 2 r

r

 

2r-42  = 1/2 r

3/2 r = 42

r = 28       g = 2r = 56         56 + 28 = number of pencils originally       56 + 28 - 42 = pencils after he lost 42

 Mar 11, 2020

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