Colin has an app on his phone that generates a random integer betwen 1 and 10.

Colin has an app on his phone that generates a random integer betwen 1 and 10. He generates 10 random numbers and computes the sum. Compute the number of distinct possible sums Colin can end up with.

Quiz

Answer/Solution

91

Steps/Work

The maximum possible sum is 10 * 10 = 100. The minimum possible sum is 10.
Hence, there are 100 - 10 + 1 = 91 possible sums
correct answer D