Calculate the number 7724
[598] Calculate the number 7724 - NUMBERMANIA: Calculate the number 7724 using numbers [6, 9, 4, 3, 51, 758] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 35 - The first user who solved this task is Sanja Šabović
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Calculate the number 7724

NUMBERMANIA: Calculate the number 7724 using numbers [6, 9, 4, 3, 51, 758] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 35
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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Half sisters

One Sunday morning Joe burst into the living room and said: "Dad, Mom, I have some great news for you! I am getting married to the most beautiful girl in town. She lives a block away and her name is Susan."

After dinner, Joe's dad took him aside and said: "Son, I have to talk with you. Your mother and I have been married 30 years. She's a wonderful wife but she has never offered much excitement in the bedroom, so I used to fool around with women a lot. Susan is actually your half-sister, and I'm afraid you can't marry her."

Joe was heartbroken. After eight months he eventually started dating girls again. A year later he came home and very proudly announced: "Dianne said yes! We are getting married in June."

Again his father insisted on another private conversation and broke the sad news: "Diane is your half-sister too, Joe, I am very sorry about this."

Joe was furious. He finally decided to go to his mother with the news.

"Dad has done so much harm. I guess I am never going to get married," he complained. "Every time I fall in love, Dad tells me the girl is my half-sister."

His mother just shook her head and said: "Don't pay any attention to what he says, dear. He's not really your father."

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Carpet sweeper patent

In 1876, American inventor Melville (Reuben) Bissell (1843-89) received a U.S. patent for the carpet sweeper (No. 182,346). At his a crockery shop in Grand Rapids, Mich., his wife Anna's health was affected by dust from the packing materials. From a desperate need for self-preservation, he invented the carpet sweeper. They recognized the sweeper's marketing possibilities and began to assemble them in a room over the store. The inner workings and cases were made by women working in their homes. Tufts of hog bristles were bound with string, dipped in hot pitch, inserted in brush rollers and finally trimmed them with scissors. Anna Bissell gathered the parts together in clothes baskets and brought them back to the store for assembling.
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