The three-digit number has the number 16. If we change the digits in this number in the hundreds and tithing, the number is reduced by 360. If we change the digits to a few tens in the original number
and units, the number is increased by 54. Find this three-digit number.
I also need the whole solution and procedure please.

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.