In the junior basketball league there are 18 teams, 2/3 of them are bad and ½ are rich. What can’t be the number of teams that are rich and bad?
Answer(s): C
(2/3 x 18 = 12) teams are bad and 9 are rich.The number of teams which are rich and that are bad must be between 9 and (9+12-18 = 3). The only answer, which is not in that range, is C.
In the third grade of Windblown School there are 108 students, one third of them failed the math test and 1/6 failed that literature test. At least how many students failed both tests?
Answer(s): A
(1/3 x 108 = 36) failed the math test. (1/6 x 108 = 18) failed that literature test.The least amount of people that failed both tests is (18 + 36 –108 = -54), there can’t be an negative Overlapping between the groups so the least amount of people who failed both tests is zero.
If 1/X = 2.5, then what is the value of 1/(X – 2/3)?
If 1/X is 2.5 or 5/2 then X = 2/5.1/(2/5 – 2/3) is 1/(6/15 – 10/15) = -15/4 = -3.75.
Travis is working as a programmer of IBW. Travis earns $3,500 annually.If Travis pays 2.5% of that amount quarterly to support groups and he paid $525 so far, for how many years now has Travis been paying?
Answer(s): B
Travis pays 2.5% of 3500, which is $87.5 every 3 months (quarterly).(525/87.5 = 6), therefore Travis has been paying for (6 x 3 = 18) months now, that is 2.5 years.
Dana borrows 5500 pounds annually for her college education. If Dana gives her parents 3% of that amount back each month, how much will she still owe her parents after four years of college?
Answer(s): D
Dana takes 5500 each year and returns (0.03 x 5500 = 165) each month, which is (165 x 12 = 1980) each passing year. That means that each year Dana owes her parents (5500 – 1980 = 3520) pounds.After 4 years in college she will owe them (4 x 3520 = 14,080) pounds.
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