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What are the total number of divisors of 600(including 1 and 600)?
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What is the sum of the squares of the first 20 natural numbers (1 to 20)?
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In the polynomial f(x) = $x^5 + a\times x^3 + b\times x^4 +c\times x + d$, all coefficients a, b, c, d are integers. If 3 + $\sqrt{7}$ is a root, which of the following must be also a root?(Note that x^n denotes the x raised to the power n, or x multiplied by itself n times. Also sqrt(u) denotes the square root of u, or the number which when multiplied by itself, gives the number u)?
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How many divisors (including 1, but excluding 1000) are there for the number 1000?
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A call center agent has a list of 305 phone numbers of people in alphabetic order of names (but she does not have any of the names). She needs to quickly contact Deepak Sharma to convey a message to him. If each call takes 2 minutes to complete, and every call is answered, what is the minimum amount of time in which she can guarantee to deliver the message to Mr Sharma.
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The times taken by a phone operator to complete a call are 2,9,3,1,5 minutes respectively. What is the average time per call?
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The times taken by a phone operator to complete a call are 2,9,3,1,5 minutes respectively. What is the median time per call?
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Eric throws two dice, and his score is the sum of the values shown. Sandra throws one die, and her score is the square of the value shown. What is the probability that Sandra?s score will be strictly higher than Eric?s score?
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What is the largest integer that divides all three numbers 23400,272304,205248 without leaving a remainder?
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Of the 38 people in my office, 10 like to drink chocolate, 15 are cricket fans, and 20 neither like chocolate nor like cricket. How many people like both cricket and chocolate?
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