Practice Arithmetic, Sequences, and Number Theory
What is the average of the first 50 positive integers?
What is the average of the first 50 positive integers?
In the geometric sequence (9,18,36,72) where b1 =9, what is the value of b12?
What is the average of 4x+5, 7x-6, and 8x+2?
Lenny’s average score after 3 tests is 88. What score on the 4 th test would bring his average up to 90?
An agent receives a commission of 40 cents for every $50 of business she procures. What percent is the agent’s commission?
What is 2% of 7%?
What is z if 2.5% of z equals 75% of 50?
Given the series 2,5,8,11,…. what is the 12 th term of this sequence?
What is the smallest of four consecutive odd integers whose sum is 968?
A student finishes half of an exam in 2/3 of the time it takes him to finish the 2nd half. If the entire exam takes him an hour, how many minutes does he spend on the first ½ of the exam?