A dump

A dump truck bought 1/3 of a ton of rock on the first trip, 1/2 of a ton on the second trip, and 4/5 of a ton on the third trip. What was the total weight of the rock?

Correct answer:

m =  1.6333 t

Step-by-step explanation:

a=130.3333 t b=12=0.5 t c=45=0.8 t  m=a+b+c=0.3333+0.5+0.8=4930=1.6333 t

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