True, A farmer has 4 tons of rice plants, which can be converted exactly into 40 quintals., An ostrich registers a mass of 1 quintal on the farm scale, so it weighs 100 kg., A factory truck carries cargo box packages that weigh 20 tons in total., A standard family car weighs 13 quintals, which is heavier than an ostrich weighing 1 quintal., False, A giant ocean whale weighs 100 quintals on the marine database recording., A farmer harvests rice and needs exactly 50 sacks to pack 30 quintals of processed rice., A giraffe has a mass of 1000 kg, which means it weighs exactly 10 tons., A running race horse weighs 700 kg, which can be expanded to 70 quintals.

UNIT 6.4

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