allery2x + y = 7 மற்றும் x + y = 4 ஆகியவற்றிலிருந்து, y இன் மதிப்பு
A4
B2
C3
D1
Answer & Solution
Correct answer: D. 1
கழித்தால் x = 3 கிடைக்கும், பின்னர் y = 4 - 3 = 1.
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