There's no way to know this without knowing the number of pencils he started with
Answer:
1. R and Z 2. AC and AE
Step-by-step explanation:
(4x+y)+5
20x+5y
20x+5y+0
third term is zero
Let n be the sum of all 6 numbers:
In the 1st case n/6 = 41 ==> n =246
in the 2nd case n'/5 = 46===> n' =230, the unknown number is n-n' =246-230
= 16
