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Monday Madness

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Here are a couple questions based again on what I've been doing the last few days.

It's time to bring the cattle home from the summer range.

The Semi-Tractor I was driving is a Freightliner with a Cat 3406 engine. It weighs in at 19,500 lbs. I was pulling a 50 ft. Wilson cattle hauler weighing 12,000 lbs.

It is 204 miles from the home place to the corrals at the summer range. On Friday, I left the corrals at the home place, in the truck, at 4 am. I arrived at the loading chute at the summer range at 9:10 am (two of the mountain passes I had to get over had snow in the road and it is a very winding route with 6% grades in many areas).

Calves are placed in separate pens from the cows inside the trailer (to avoid the larger cows from stepping on the calves during the trip), so the stock needed to be sorted for loading. With that accomplished, 36 pairs were loaded into the trailer.

I left there at 11:30 am. On the way home, I put the truck across the scales in Prineville and noted the following weights: Steering axle weighed 10,800 lbs. Driver tandems weighed 33,960 lbs and the trailer tandems weighed 32,870 lbs. I arrived home, ready to unload, at 6:58 pm.

Assuming that the calves weigh 1/3 as much as the cows - What was the average weight of the cows? Of the calves?

What was my average travel speed on each leg of the trip?
Alrighty! Here's my first go 'round.

Each answer is expressed in approximations (i.e. averages).

Q #1. Average Weight of Cows = approximately 28,519 lbs {1070 lbs/cow}

Q#2. Average Weight of Calves = approximately 7611 lbs {211.42 lbs/calf}

Q#3. 40 mi/hr going TO the Summer Ranch

Q#4. 27 mi/hr coming back home



How'd I do? :unsure:
well just from a quick look at your answers Elizabeth Clare i'd say your wrong, if the calves weighed 1/3 as much as the cows i'd expect the cows weight to be 3 times the calves so 7,611 x 3 = 22,833 and not 28,519. also 28,519/36 = 792.19 per cow not 1070. no idea how you did with av speeds, will sit down and work everything out at end of week if the puzzles not solved by then. from a quick look at the weights, i'd think the 36 calves weigh just over 11,000 and 36 cows just over 33,000 so would expect your next answers to be closer to those figures.(may be wrong tho was just a quick look and calc in my head.) :popcorn:
ok bit late but my answers. empty truck 19,500 + 12,000 = 31,500 full truck 10,800 + 33,960 + 32,870 = 77,630 cattle 77,630 - 31,500 = 46,130. calves = 46,130 / 4 = 11,532.5 total or / 36 = 320.34 per calve. cows = 46,130 - 11,532.5 = 34,597.5 total or / 36 = 961.04 per cow. av speed unloaded 204 / 310 x 60 = 39.48mph loaded 204 / 448 x 60 = 27.32 mph. :popcorn: