SAT-Mathematics試験無料問題集「SAT Section Two : Mathematics 認定」
Balloons are sold according to the chart above. If a customer buys one balloon at a time, the cost is $1.00
per balloon. If a customer buys ten balloons at a time, the cost is $0.90 per balloon. If Carlos wants to buy
2 ,000 balloons, how much money does he save by buying 1,000 balloons at a time rather than ten
balloons at a time?
正解：E
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Matt weighs 3/5 of Paul's weight. If Matt were to gain 4.8 pounds, he would weigh 2/3of Paul's weight.
What is Matt's weight in pounds?
What is Matt's weight in pounds?
正解：
43.2
Explanation/Reference:
Matt's weight, m, is equal to3/5of Paul's weight, p:
If 4.8 is added to m, the sum is equal to
Substitute the value of min terms of p into the second equation:
Paul weighs 72 pounds, and Matt weighs pounds.
Explanation/Reference:
Matt's weight, m, is equal to3/5of Paul's weight, p:
If 4.8 is added to m, the sum is equal to
Substitute the value of min terms of p into the second equation:
Paul weighs 72 pounds, and Matt weighs pounds.
Sales of the Greenvale and Smithtown Branches of SuperBooks
The graph above shows the sales by month for the Greenvale and Smithtown branches of SuperBooks.
From January through May, how much more money did the Smithtown branch gross in sales than the
Greenvale branch?
The graph above shows the sales by month for the Greenvale and Smithtown branches of SuperBooks.
From January through May, how much more money did the Smithtown branch gross in sales than the
Greenvale branch?
正解：
4000
Explanation/Reference:
The Greenvale sales, represented by the light bars, for the months of January through May respectively
were $22,000, $36,000, $16,000, $12,000, and $36,000, for a total of $122,000. The Smithtown sales,
represented by the dark bars, for the months of January through May respectively were $26,000, $32,000,
$ 16,000, $30,000, and $22,000, for a total of $126,000. The Smithtown branch grossed $126,000 -
$ 122,000 = $4,000 more than the Greenvale branch.
Explanation/Reference:
The Greenvale sales, represented by the light bars, for the months of January through May respectively
were $22,000, $36,000, $16,000, $12,000, and $36,000, for a total of $122,000. The Smithtown sales,
represented by the dark bars, for the months of January through May respectively were $26,000, $32,000,
$ 16,000, $30,000, and $22,000, for a total of $126,000. The Smithtown branch grossed $126,000 -
$ 122,000 = $4,000 more than the Greenvale branch.
A bus holds 68 people. If there must be one adult for every four children on the bus, how many children
can fit on the bus?
can fit on the bus?
正解：
52
Explanation/Reference:
There is one adult for every four children on the bus. Divide the size of the bus, 68, by
There can be no more than 13 groups of one adult, four children. Therefore, there can be no more than
(13 groups)(4 children in a group) = 52 children on the bus.
Explanation/Reference:
There is one adult for every four children on the bus. Divide the size of the bus, 68, by
There can be no more than 13 groups of one adult, four children. Therefore, there can be no more than
(13 groups)(4 children in a group) = 52 children on the bus.
What is the value of when x = 2 and y = 5?
正解：
4
Explanation/Reference:
Substitute 2 for x and 5 for
the 5th root of 32 is 2, 2 raised to the 2nd power is 4.
Explanation/Reference:
Substitute 2 for x and 5 for
the 5th root of 32 is 2, 2 raised to the 2nd power is 4.