alleryএকটি লিফট ফ্লোর −2 থেকে শুরু হয় এবং 7 মেঝেতে উঠে। এটা কোন তলায় পৌঁছায়?
A6
B4
C9
D5
Answer & Solution
Correct answer: D. 5
লিফট মেঝেতে পৌঁছেছে −2 + 7 = 5।
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