There is a number that is 5 times the sum of its digits.
What is this number? Answer is not 0.
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Answer / guest
The number is 45, simply because
45 = 5 * (4 + 5)
How does one find this number?
Let T be the digit in the tens place and U be the digit in
the units place. Then, the number is
10*T + U, and the sum of its digits is T + U.
The following equation can be readily written:
10*T + U = 5*(T + U) or
10*T + U = 5*T + 5*U or
5*T = 4*U
Thus, T / U = 4 / 5
Since T and U are digits, T must be 4 and U must be 5.
There are six boxes containing 5, 7, 14, 16, 18, 29 balls of
either red or blue in colour. Some
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| Is This Answer Correct ? | 34 Yes | 3 No |
Answer / shrikant
the Answer is 9
bcause 9+9+9+9+9=45,so(4+5 is=9)
| Is This Answer Correct ? | 10 Yes | 16 No |
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