Calculate the number 250
[799] Calculate the number 250 - NUMBERMANIA: Calculate the number 250 using numbers [2, 5, 1, 7, 57, 138] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 37 - The first user who solved this task is Sanja Šabović
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Calculate the number 250

NUMBERMANIA: Calculate the number 250 using numbers [2, 5, 1, 7, 57, 138] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 37
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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It was the annual homecoming d...

It was the annual homecoming dance at the local high school gym. Most of the young folk were out on the dance floor but a few young men and women lined the sides of the gym, hoping for a dance partner to ask them out onto the dance floor.
After waiting anxiously for quite a while, a rather awkward freshman finally got up the nerve to ask a pretty junior for a dance at the homecoming.
She gave him the once-over and said, "Sorry, I won't dance with a child."
"Please forgive me," responded the underclassman. "I didn't realize you were pregnant."
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Coal pipeline in service

In 1957, the first U.S. commercial long-distance coal slurry pipeline, 108 miles long, began delivery from a coal mine (Georgetown Preparation Plant of the Hanna Coal Company, near Cadiz, Ohio) to a power station (Cleveland Illuminating Company, in Eastlake, Ohio). Completed on 12 Sep 1956, the 10-3/4 inch diameter pipeline could transport over a million tons of coal per year. Mixed with an equal amount of water, it delivered 150 tons of coal per hour. The coal slurry was then processed to remove the water, and made ready for burning. Slurry pipelines now exist transporting over twenty types of minerals, including iron-ore concentrate, copper ore, phosphate rock concentrate, limestone, clay and mineral sands. Pipelines can be built to the mouth of mines at lower cost than railroads.«
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