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ro575
Junior Member
USA
4 Posts |
 Posted - 09/25/2007 : 09:42:26
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6.If A, B, C, and D each stand for a different single digit from 1 to 9, answer each of the following if:
A + B = CD
a)What is the value of C? Why?
b)Can D be 1? Why?
c)If D is 7, what values can A be?
d)If A is 6 greater than B, then what is the value of D?
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Subhotosh Khan
Advanced Member
USA
9114 Posts |
Posted - 09/25/2007 : 09:49:15
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quote:
Originally posted by ro575
6.If A, B, C, and D each stand for a different single digit from 1 to 9, answer each of the following if:
A + B = CD
a)What is the value of C? Why?
b)Can D be 1? Why?
c)If D is 7, what values can A be?
d)If A is 6 greater than B, then what is the value of D?
According to your definition:
Does "DC" mean "D multiplied by C"? |
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skeeter
Advanced Member
USA
5634 Posts |
Posted - 09/25/2007 : 13:22:23
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quote:
Originally posted by ro575
6.If A, B, C, and D each stand for a different single digit from 1 to 9, answer each of the following if:
A + B = CD
a)What is the value of C? Why? 1 ... you tell me why
b)Can D be 1? Why? yes
c)If D is 7, what values can A be? 8 or 9
d)If A is 6 greater than B, then what is the value of D? 2
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ro575
Junior Member
USA
4 Posts |
Posted - 09/25/2007 : 14:50:24
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| Darn you're fast. |
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Interactive Math Goodies Software
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