Maths
Maths Puzzle
Numerical Ability
Age Problem
3x + 2 = 5y = 7z + 6 Solve for x,y,z
Read Solution (Total 3)
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- x=6,y=4,z=2
- 9 years agoHelpfull: Yes(0) No(2)
- Taking 3 pairs of equations individually-
1> 3x+2 = 5y
3x = 5y -2 => x=5y-2/3 which gives for y=4, x=6
2> 5y = 7z+6
y = 7z+6/5 => This gives for z=2. y=4
3> 3x = 7z+4
x = 7z+4/3 => This gives for z=2, x=6
Hence x : y : z ratio will be 6 : 4 : 2
Hence minimum roots= (x,y,z)= (6,4,2) - 8 years agoHelpfull: Yes(0) No(0)
- hit and trial
put x=6, y=4 and z=2 - 6 years agoHelpfull: Yes(0) No(0)
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