Algebrahard · Past Paper
Find the value of k for which the system of equations has no solution.
Ak=10
Bk=5
Ck=2.5
Dk=0
✓ Correct Answer: A — k=10
For no solution, 5/10 = 2/k -> 1/2 = 2/k -> k = 4. Wait, ratios 5/10 = 2/k != 11/21. 1/2 = 2/4. So k=4.
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