SOLUTION: Two pennies weigh 5 grams. There are 12 kilograms of pennies in a sack. How many pennies were in the sack?

SOLUTION: Two pennies weigh 5 grams. There are 12 kilograms of pennies in a sack. How many pennies were in the sack?

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Question 612961: Two pennies weigh 5 grams. There are 12 kilograms of pennies in a sack. How many pennies were in the sack?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
2 pennies: 5 grams

200*2 pennies : 200*5 grams

400 pennies: 1000 grams

400 pennies: 1 kilograms

12*400 pennies: 12*1 kilograms

4800 pennies : 12 kilograms

So there are 4800 pennies in the 12 kg sack.
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