All Puzzles

Andrew is writing a book.
He starts on page 1. When he finished, he used a total of 228 digits.How many pages does he have?
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Sasha is thinking about investing 20.000 dollars in a company, which offers him a fiveyear plan of divident payment at the end of each year: At the end of the first year, he will get 2000 dollars. At the end of the second year, he will get 4000 dollars. At the end of the third year, he will get 6000 dollars. At the end of the fourth year, he will get 6000 dollars again, and at the end of the last year of payment plan, he will get 5000 dollars.
What is the maximum interest rate a bank could offer to Sasha, so that the investment in the company is more payable for him than making a deposit in a bank?View SolutionSubmit Solution 357 views
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At the pharmacy, Mark has asked for 80% alcohol, but the pharmacy doesn’t have one, so he bought half liter of 96% alcohol and a liter of distilled water. How much distilled water does he need to pour into the half liter of 96% alcohol, so he could get 80% alcohol product?
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Two Arabs, one of whom is carrying 5 slices of bread, and the other one carrying 3 slices of bread, meet up with a wealthy but hungry passenger in the desert. All 3 of them eat together and everybody eats the same amount of food.The passenger pays 8 coins and continues on his way.
How are the two Arabs supposed to split the money so each of them gets a fair amount?View SolutionSubmit Solution 1025 views
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Find the number to replace the question mark to complete the series, provided the pair of numbers exhibits a similar relationship?
? : 4623 :: 9 : 647
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Can you find out how many prime numbers that are less than 95 will leave an odd reminder when divided by 5?
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