If x and y are positive integers and x = 10y + 5, what is the remainder when x is divided by 5?
A. 0
B. 1
C. 2
D. 3
E. 4
OA A
Source: Manhattan Prep
If x and y are positive integers and x = 10y + 5, what is
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We have x = 10y + 5BTGmoderatorDC wrote:If x and y are positive integers and x = 10y + 5, what is the remainder when x is divided by 5?
A. 0
B. 1
C. 2
D. 3
E. 4
OA A
Source: Manhattan Prep
=> x = 5(2y + 1)
We see that x is divisible by 5; thus, x divided by 5 will leave a remainder of 0.
The correct answer: A
Hope this helps!
-Jay
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GIVEN: x = 10y + 5BTGmoderatorDC wrote:If x and y are positive integers and x = 10y + 5, what is the remainder when x is divided by 5?
A. 0
B. 1
C. 2
D. 3
E. 4
OA A
Source: Manhattan Prep
Factor out 5 to get: x = 5(2y + 1)
We can see that x is a multiple of 5, which also means x is divisible by 5, which means the remainder will by ZERO when x is divided by 5
Answer: A
Cheers,
Brent
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BTGmoderatorDC wrote:If x and y are positive integers and x = 10y + 5, what is the remainder when x is divided by 5?
A. 0
B. 1
C. 2
D. 3
E. 4
OA A
Source: Manhattan Prep
x/5 = (10y + 5)/5 = 2y + 1.
Since y is an integer, the quotient 2y + 1 is an integer. So the remainder is 0.
Answer: A
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