alleryStart learning →The pair 2x + 3y = 6 and 4x + 6y = 12 has
AExactly one solution
BNo solution at all
CInfinitely many solutions
DExactly two solutions
Answer & Solution
Correct answer: C. Infinitely many solutions
The second equation is twice the first, so both describe the same line.
Keep practising Quadratic Equation
Browse all Quadratic Equation questions for CA Foundation, or explore more Quantitative Aptitude topics.
Related questions
The cubic (x − 2)²(x + 5) = 0 has the repeated rootHow many real roots does x³ − 8 = 0 have?A number plus its reciprocal is 5/2. The greater such number isThe product of two consecutive positive integers is 132. The smaller isA rectangle has perimeter 34 m and area 60 m². Its longer side isA father is 3 times his son's age. In 10 years he will be twice as old. The son is nowIf α and β are roots of x² − 5x + 4 = 0, then α² + β² isDividing ax² + bx + c = 0 by a gives x² + px + q = 0, where p and q are