MathRevolution wrote:
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Math Revolution GMAT math practice question]
If x and y are integers, what is the least possible positive value of 21x+35y?
A. 1
B. 3
C. 5
D. 7
E. 9
We need least positive value. That means 35y is greater than 21x
Y will be positive and x will be negative.
Possible values of y= 35,70,105,140,175
Possible values of x= - 21, - 42, - 63, - 84, - 105, - 126, - 147
Least possible POSITIVE value = 70 - 63 = 7
Answer is D
( NOTE : 0 is neither positive nor negative integer. It is just even integer)
Thank you = Kudos
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Thank you =Kudos
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