A certain machine makes a casting every 3 minutes. How many castings does the machine make in two-and-a-half hours?
The fraction 3 / 7 is represented by the decimal 0.428571 repeatedly.
3/7 = 0.428571 428571 428571.... What is the 93rd decimal digit ?
Neil’s average score for three bowling games was 150. In the second game, Neil scored 35 less than in the first game. In the third game, he scored 5 less than in the second game. What was his score in the second game ?
A cassette has two sides and each side can record for 30 minutes. A student brings 4 tapes in order to record a two-and-half-hour lecture. If the time spent for loading and unloading the tapes is negligible, what percent of the total available tape will be used to record the lecture ?
(D) 62 ˝ %
(E) 37 ˝ %
If the triangle below is distorted so that angle 'b' is halved and angle 'c' is doubled, but 'a'remains a right angle, which of the following is a possible value for Ð b?
On an income of $ 18000 a year, a clerk pays 20% as Federal taxes and 20% of the
remainder as state taxes. How much is left ?
Ron can pack 5 cartons in 'a' days. At this
rate he can pack 4a cartons in how many days ?
(B) a2 (C) 4/5 a2
What is the total length of fencing needed to enclose a rectangular area 41 feet by 51 feet?