A labourer stacked metal bars each measuring 20 cm by 15 cm by 5 cm into a wooden create . the wooden create was 1 m long , 50 cm wide and 26 cm high .
a. what was the maximum number of the metal bars that he could stack into wooden create ?
b. if each cubic centimetre of a metal bar had a mass of 4.8 g, what was the total mass of 56 kg ?

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