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B
44 kg
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C
54 kg
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D
43 kg
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Solution
The correct option is A 53 kg To subtract 30 from 83, we start at 83 on the number line.
From 83, we jump backwards thrice. Each jump covers 10 numbers.
83 to 73
73 to 63
63 to 53
We reach 53. Hence,
83 kg - 30 kg = 53 kg