while constructing o wall of a dam, an engineer uses larger rectangular stone blocks each of length 30 whole 1/6 cm and width 21 whole 1/5 cm. he also uses smaller stone blocks each of length 25 whole 1/4 cm and width 18 whole 1/2 cm. (i) find the combined length, when a larger and smaller stone block are put together length-wise and breadth-wise. (ii) how many such large and small stone blocks would be put together along the length that would give a wall of length 554 whole 1/6 cm? (iii) if 36 such stone blocks of each type are put together along the width, what will be the length of the wall? (iv) what values are shown by the engineer?​

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