Mike thought of a number. He added to it two other numbers. One of these numbers was 12 less than his number, the other was 12 more than his number. The result of addition was 15. What was Mike's original number?

Harry got 42 out of 49 correct in his test. What fraction of the marks did he get correct? Give your answer in its simplest form ...

You need to buy 7 notesbooks that cost $0.74 each. How much will you spend?

How do you regroup 607 - 568

12 meters in 28 seconds

Phillip saves $8.00 a month. how long would it take him to save at least $60.

How do you find the absolute deviation of a data

One night a theater sold 186 movie tickets. an adults ticket cost $14, and a childs costs $10. in all, $2148 was taken in. How many of each kind of ticket were sold?

If an outfit consist of jeans, shirt, a sweater and a scarf, how many different outfits can a person make from one pair of jeans, for shirts, three sweaters and two scarves?

Suppose that combined verbal and math SAT scores follow a normal distribution with a mean 896 and standard deviation 174. Suppose further that Peter finds out he scored in the top 2.5 percentile (97.5% of students scored below him).

Paul volunteered at the senior center for 3 9 10 3910 hours on Saturday and 5 1 6 516 hours on Sunday. How many hours did Paul volunteer altogether at the senior center?