Train tons

The entire loaded train weighs 760 tons. It has a total of 30 wagons, each carrying 12 tons of grain and empty weighs 10 tons. What is the weight of the locomotive?

Correct answer:

l =  100 t

Step-by-step explanation:

m=760 t n=30 w=12+10=22 t  l=mn w=76030 22=100 t

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