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In a three-digit number n, the hundreds digit is 3 times the
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25 Dec 2018, 10:48
25 Dec 2018, 10:48
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In a three-digit number n, the hundreds digit is 3 times the units digit.
Quantity A |
Quantity B |
The units digit of n |
4 |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
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Re: In a three-digit number n, the hundreds digit is 3 times the
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16 Dec 2019, 08:23
16 Dec 2019, 08:23
1
Carcass wrote:
In a three-digit number n, the hundreds digit is 3 times the units digit.
Quantity A |
Quantity B |
The units digit of n |
4 |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
GIVEN: In a three-digit number n, the hundreds digit is 3 times the units digit.
There are only three possible cases in which the hundreds digit is three times the unit's digit:
Case i: the number is in the form: 3_1
Case ii: the number is in the form: 6_2
Case iii: the number is in the form: 9_3
Notice that, if the units digit is greater than 3, then the tens digit will be a TWO-DIGIT number, which is impossible.
We have:
QUANTITY A: 1, 2, or 3
QUANTITY B: 4
In all possible cases, Quantity B is greater
Answer: B
Cheers,
Brent
Re: In a three-digit number n, the hundreds digit is 3 times the
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21 Dec 2019, 21:16
21 Dec 2019, 21:16
The hundredth digit can only be 1,2,3 units digit can only be 3,6,9.
hence answer B
hence answer B
