a brick weighs is2×1/4 kg.a stone is 1×1/5 kg lighter than the brick .find the weight of stone.
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Step-by-step explanation:
Let the weight of the brick = 2x
The weight of the brick (2x) = 1kg + 2x/2
=> 2x = 1 + x
=> 2x - x = 1
=> x = 1
Hence weight of the brick is 2x = 2 . 1 = 2
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