[計量] Diane completed each of her ...
P,Q and R are distinct points on a straight line, with Q between P and R, S is
a point NOT on the line, and QR=QS
PR PS
Ans.A
Diane completed each of her exercise sets in 75 seconds and rested for 55 sec
between the exercise sets. What is the ration of the amount of time it took her
to complete an exercise set to the amount of time she rested between the sets?
(A)5:6
(B)5:11
(C)6:11
(D)11:5
(E)11:6
Ans.B
我直接用75:55----->15:11.沒有這個選項...> <
還有一題....一個圓直徑本身和圓周所形成的所有角應該是角度一樣嗎？
這題好像很笨..我覺得畫出來感覺不一樣...但他們都對應同一個圓周...不應該都是一樣嗎？！
To obtain an FHA mortgage for $50,000 or more, the home buyer must have a down
payment equal to 4% of the first $25,000 of the mortgage amount and 5% of the
portion in excess of $25,000.At settlement the buyer pay a mortgage insurance
premium equal to 3% of the mortgage amount. What is the maximun FHA mortgage,
if any a buyer can obtain if the buyer has only $6,000 available for the down
payment and insurance premium?
Ans. $78,125
68 people are sitting in 20 cars abd each car contains at most 4 people. What
is the maximum possible number of cars that could contain exactly 1 of the 68
people?
Ans. 4 why not 3
In a graduating class of 236 students, 142 took algebra and 121 took chemistry.
what is the greatest number of students that could have taken both algebra and
chemistry.
Ans. 121 why not 27
If one number is chosen at random from the first 1,000 positive integers, what
is the probability that the number chosen is multiple of both 2 and 8?
Ans.1/8
tks ^^
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