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How many biscuits had it eaten on the first day?

+1 vote
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Gauri's puppy was growing fast. In the first five days since she got it it had eaten 100 dog biscuits. If each day it had eaten 6 more than the previous day .
How many biscuits had it eaten on the first day?

posted May 22, 2014 by Mishthy Mukherjee

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2 Solutions

+2 votes
 
Best answer

Let a be the # of Biscuits eaten 1st day.

So.

a + (a+6) + (a+6+6) + (a+6+6+6) + (a+6+6+6+6) = 100
5a + 60 = 100

Thus,

a =  8 Biscuits.

Answer is 8 Biscuits

solution May 22, 2014 by Kunal Shah
+1 vote

....................8...............

solution Dec 19, 2014 by Shashi Kant



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