A student multiplied 7236 by 65 instead of multiplying by 56. How much was his answer greater than the correct answer?

A student multiplied 7236 by 65 instead of multiplying by 56. By how much was his answer greater than the correct answer? (Hint: Do you need to do both the multiplications?

A student multiplied 3759 by 231 instead of multiplying by 213. How much was his product greater than the correct product?

How much is x-2y+3z greater than 3x+5y-7?

By how much is 19 /(20) greater than 2/(20) ?

If x-y=-6, then y is how much greater than x?

Which of the following change (s) in the presence of catalyst ? (More than one correct answer)

In a test an examinee either guesses, copies or knows the answer to multiple choice question with five choices. The probability that he makes a guess is 1/4 and probability that he copies the answer is 1/8 . The probability that his answer is correct given that he copies is 1/10 . Find the probability that he knows the answer to the question given that he correctly answered it:

There are 6 items in column A and 6 items in column B. A student is asked to match each item in column A with an item in column B. How many possible, correct or incorrect, answer are there to this question?

There are 6 items in column A and 6 items in column B. A student is asked to match each item in column A with an item in column B. How many possible, correct or incorrect, answer are there to this question?

Can the experimental probabilty of an event be greater than 1? Justify your answer.