Best Answer: This is 10+13+16+19+...+94+97
If we subtract 7 from each one, we'd have 3+6+9+...+90, which is the same as 3(1+2+3+...+30) = 3(15)(31).
But that answer is 30*7 too small, since we subtracted 7 from each summand.
Thus the sum is 3(15)(31) + 30(7)
the sum of all 2-digit netural number
choose any three digit from 1 to 9 to from a 3 - digit number and each digit is chosen only once how many of these have the sum of all digit equal to 13
choose any three digit from 1 to 9 to from a 3 - digit number and each digit is chosen only once how many of these have the sum of all digit equal to 13
choose any three digits from 1 to 9 to form a 3 - digit number and each digits is chosen only once. how many of these have the sum of all digit equal to 13
The sum of two numbers is the greatest 4 – digit number and their ratio is 1:2. The smaller number is ?
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The sum of two numbers is the greatest 4 – digit number and their ratio is 1:21:2.
The smaller number is
