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Mathematics, 08.11.2019 13:31 tricklts15

2car + 2 train = 1280 rs
car + bear + train = 820 rs
train - car = 140rs
2 car + 2 bear = ?

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2car + 2 train = 1280 rs
car + bear + train = 820 rs
train - car = 140rs
2 car + 2...
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