GRE
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Verbal Ability
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GRE Other Question
If the equations 5x+9y+17z=a,4x+8y+12z=b and 2x+3y+8z=c have at least one solution for x,y and z and a,b and c are not equal to 0,then which of the following is true?
In a high school pep band that consists of forty students, the number of seniors is five fewer than twice the number of juniors, and 30% of students in the band are neither juniors nor seniors.Find number of juniors in the band.