alleryजर a + b = 10 आणि a - b = 4 असेल, तर a चे मूल्य काय आहे?
A6
B8
C7
D3
Answer & Solution
Correct answer: C. 7
दोन्ही समीकरणांची बेरीज केल्यास: 2a = 14 => a = 7.
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