Q&Answers: Math/Chemistry/Physics Problems + Solutions

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Sid obtained 76, 65, 82, 67 and 80 marks (out of 100) in English, Mathematics, Physics, Chemistry and Biology.

How many integer values are there for x such that 1 < 3x + 5 < 17?

Nine persons went to a hotel for taking their meals.

How many pounds of salt at 50 cents/lb must be mixed with 40 lbs of salt that costs 38 cents/lb so that a merchant will get 20% profit by selling the mixture at 48 cents/lb?

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How many pages the book have, if total 303 digits are used to form the page numbers?

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The MegaTek Corporation is displaying its distribution of employees by department in a circle graph.

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in a school the ratio of boys and girls are in the ration 5:6 .25% of boys will get scholar ship and 20% of girls will get scholar ship what % of students wont get scholarship?

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How many positive integer solutions does the equation 2x+1y = 100 have?

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A travel agent offers a vacation plan which costs x dollars for the first day, and x/2 for each additional day.

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If n is an integer, then which of the following statements is/are FALSE?

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A car drives 60 miles on local roads at 20 mph, and 120 miles on the highway at 60 mph, what is the average speed of the entire trip?

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A barrel holds 4 quarts of tar and 4 quarts of turpentine.

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Mice can multiply very fast. Adult mice can give birth once every month, and baby mice grow into adult mice in just two months after they are born.

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Find the number of ways in which 5 identical balls can be distributed among 10 identical boxes, if not more than one ball can go into a box?

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Sum of 3 consecutive even no.'s is 38 more than the 1st no. of the series.

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Joshua and Jose work at an auto repair center with 6 other workers.

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A company selected 250 zip codes in Northeastern, Florida, Arizona and California in order to mail a product catalog.

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For any four digit number, abcd, *abcd*= (3^a)(5^b)(7^c)(11^d).

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Ajay can ride 50km in 1 hour.

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If the cost price is 81% of selling price then what is the profit percentage.

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If 0.75: x :: 5:11, then x is equal to:

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The average of 13 numbers is 60.

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In a class,7 students like to play Basketball and 8 like to play Cricket. 3 students like to play on both Basketball and Cricket.

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