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1. For what value of 'K' will the pair of equations 3x+4y=12 and kx+12=30 does not have a unique solution ?
- A. 3
- B. 3
- C. 3
- D. 3
Answer: Option C
Explanation:
3x + 4y = 12 এবং kx + 12y = 30 দুটি সমীকরণ।
যদি, 3/k = 4/12 হয় তাহলে সমীকরণ জোটটির অসংখ্য সমাধান থাকবে।
এখন, 3/k = 4/12
4k = 12 × 3
k = 36/4
k = 9
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