Matt is touring a nation in which coins are issued in two amounts, $2c$ and $5c,$ which are made of iron and copper,

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Vincen: Legendary Member; Posts: 2898; Joined: Thu Sep 07, 2017 2:49 pmFollowed by: 5 members; Thanked: 6 times

by Vincen » Fri Aug 06, 2021 7:20 am

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Matt is touring a nation in which coins are issued in two amounts, $2c$ and $5c,$ which are made of iron and copper, respectively. If Matt has ten iron coins and ten copper coins, how many different sums from $1c$ to $70c$ can he make with a combination of his coins?

A. 66
B. 67
C. 68
D. 69
E. 70

Answer: A

Source: Veritas Prep

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Source: Beat The GMAT — Problem Solving | Fri Aug 06, 2021 7:20 am

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