# SAT Math Practice Test 5 (Easy)

This is the first of our No Calculator SAT Math practice tests. This is based on section 3 of the SAT, which includes a total of 20 questions. Our practice questions are sorted by difficulty level so that you can focus questions that challenge you. While this is our easiest test, it covers many important skills and includes some tricky problems. We recommend that all students start here.

The use of a calculator is NOT permitted. Solve each problem and select the best of the answer choices provided.

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 Question 1
If x is 6 less than y and y is twice of z, what is the value of x when z = 2?

 A 10 B 8 C −2 D 12
Question 1 Explanation:
The correct answer is (C).

Let's set up some equations to solve for $x$.
Translating from English to math, we get:

"x is 6 less than y" ⇒ $x = y - 6$

"y is twice of z" ⇒ $y = 2z$

Now plug in $z = 2$:

$y = 2z = 2(2) = 4$

$x = y - 6 = 4 - 6 = -2$

Therefore, $x$ is equal to $-2$.
 Question 2
If $x + 3 = y$, then $2x + 6 = ?$

 A $y$ B $2y$ C $3y$ D $4y$
Question 2 Explanation:
The correct answer is (B).

We can rewrite $x + 3 = y$ as $x = y - 3$

Plugging this value of $x$ into the 2nd equation, we get:

$2(y - 3) + 6$

Simplifying: $2y - 6 + 6 = 2y$

Therefore, $2y$ is the answer.

Alternatively, notice that $2x+6$ is just $2*(x+3)$. Thus, it must be equal to $2*y = 2y$.
 Question 3
$3(x - 4) = 18$, what is the value of $x$?

 A $\dfrac{14}{3}$ B $\dfrac{22}{3}$ C $6$ D $10$
Question 3 Explanation:
The correct answer is (D). First, distribute the 3, then solve for x:

3(x – 4) = 18
3x – 12 = 18
3x = 30
x = 10
 Question 4
Cecilia, Robbie, and Briony all bought stamps. The number of stamps Cecilia purchased was equal to a single digit. Only one of the three purchased a number of stamps that is divisible by 3. At least one of the three purchased an even number of stamps. Which of the following could represent the numbers of stamps each person purchased?

 A 3, 8, 24 B 7, 9, 17 C 9, 10, 13 D 6, 9, 12
Question 4 Explanation:
The correct answer is (C).

It’s easier for this type of question to use process of elimination. Since all of the answer choices have at least one single-digit number in it, let’s look at the second requirement. If the number of stamps that ONLY ONE of them purchased was divisible by 3, we can eliminate answer choices that contain more than one multiple of 3: (A) and (D).

The third requirement is that we have at least one even number. Between answers (B) and (C), only (C) satisfies this requirement.
 Question 5
For their school uniform, each student can choose from 4 types of tops and 3 types of bottoms. How many combinations of tops and bottoms are there?

 A 7 B 12 C 1 D 10
Question 5 Explanation:
The correct answer is (B).

This is a simple probability question. For every top, there are 3 types of bottoms. We know that there are 4 types of tops.

Thus, there are 3 × 4 = 12 combinations of tops and bottoms.
 Question 6

The table above represents a relationship between and $x$ and $y$. Which of the following linear equations describes the relationship?

 A $y = x + 3$ B $y = 3x - 1$ C $y = 3x$ D $y = 2x$
Question 6 Explanation:
The correct answer is (B).

Test each answer choice with the values in the table. (B) is the only option that satisfies all the values of $x$ and $y$.
 Question 7
If the average (arithmetic mean) of $2x$ and $4x$ is $18$, what is the value of $x$?

 A 2 B 3 C 6 D 9
Question 7 Explanation:
The correct answer is (C). Use the formula for average:

$Average$ $= \dfrac{Sum~of~all~elements}{Number~of~elements}$

$= \dfrac{(2x + 4x)}{2} = 18$

$\dfrac{(6x)}{2} = 18$

$6x = 18 * 2$

$6x = 36$

$x = 6$
 Question 8
In a certain coffee shop, X lattes were sold each hour for 6 hours on Monday, and Y americanos were sold each hour for 7 hours on Monday. What expression represents the total number of lattes and americanos that were sold by the coffee shop on Monday?

 A 13Y + 13X B 13XY C 6Y + 7X D 6X + 7Y
Question 8 Explanation:
The correct answer is (D).

$(\frac{X}{hour} * 6~hours) + (\frac{Y}{hour} * 7~hours) = 6X + 7Y$

Notice that we multiplied the number of each drink by the number of hours that drink was sold, and then added the two totals together:
(6 * X) + (7 * Y)

This matches the expression in answer choice (D).

Alternatively, this solution can be verified by testing values. Let’s say X = 2 and Y = 3. If 2 lattes were sold each hour for 6 hours, then 2 * 6 = 12 lattes total were sold.

Similarly, if 3 americanos were sold each hour for 7 hours, then 3 * 7 = 21 americanos were sold.

The total number of lattes and americanos would therefore be 12 + 21 = 33. Plug in X = 2 and Y = 3 into the answer choices. The one that yields 33 is correct.
 Question 9
If $\dfrac{6}{z+4} = p$, and $p = 12$, what is the value of $z$?

 A −1.5 B −3.5 C 1.5 D 3.5
Question 9 Explanation:
The correct answer is (B).

Start by substituting 12 for p in the original equation:
$\frac{6}{z + 4} = 12$

Because the unknown is in the denominator, and the equation represents a simple proportion, we can simplify the problem by cross multiplying and then dividing:
$6 = 12(z + 4)$

Divide both sides by 12:
$\frac{6}{12} = z + 4$

Simplify the fraction:
$\frac{1}{2} = z + 4$

Subtract 4:
$\frac{1}{2} - 4 = z$

$-3.5 = z$
 Question 10
If a car averages 36.8 miles per gallon of gasoline, approximately how many kilometers per liter of gasoline does the car average if 1 gallon = 3.8 liters and 1 mile = 1.6 kilometers?

 A 16 kpl B 21 kpl C 36 kpl D 49 kpl
Question 10 Explanation:
The correct answer is (A).

This problem is asking you to do two conversions: miles to kilometers, and gallons to liters. Both conversions can be done simultaneously to ensure correct dimensional analysis.

Set up the expression to yield the proper units:

$\dfrac{36.8~miles}{1~gallon} * \dfrac{1.6~km}{1~mile} * \dfrac{1~gallon}{3.8~L} = 15.49~km~per~liter$

$≈ 16~kpl$
 Question 11
Trains A, B and C passed through a station at different speeds. Train A’s speed was 2 times Train B’s speed and Train C’s speed was 3 times Train A’s speed. What was Train C’s speed in miles per hour, if the Train B’s speed was 9 miles per hour?

 A 9 B 18 C 27 D 54
Question 11 Explanation:
The correct answer is (D).

We can describe the situation using equations:

"Train A’s speed was 2 times Train B’s speed" ⇒ $A = 2B$

"Train C’s speed was 3 times Train A’s speed" ⇒ $C = 3A$

We know the speed of Train B is 9 miles per hour. Plugging the value of B into A, we get:
$A = 2 * 9 = 18$

Plugging the value of A into C, we get:
$C = 3A = 3*18 = 54$
 Question 12
In quadrilateral ABCD, what is the value of ∠ADC if ∠BAD + ∠ABC + ∠BCD = 280°?

 A 80° B 120° C 160° D 180°
Question 12 Explanation:
The correct answer is (A).

For this type of Geometry question, it’s simpler to draw the figure if none is provided. Remember that just because it’s a quadrilateral, this does not necessarily mean it is a square or rectangle, so let’s draw an irregular quadrilateral.

Let’s label the angles with other letters of the alphabet so it’s easier to understand which angles we’re discussing.

The value we are looking for is angle ∠ADC, here labeled as z. The interior angles of any quadrilateral must sum to 360°:

W + X + Y + Z = 360°
Z = 360° − (W + X + Y)
280° + Z = 360° so Z = 80°
 Question 13
A certain item is shipped in either of two different box sizes, “large” and “small”. In yesterday’s shipments, twice as many small boxes as large boxes were used. The large box contains three times the quantity of the item that the small box contains. If 48 boxes in total were used yesterday, and a large box holds a quantity of 9 of the item, how many items were shipped yesterday?

 A 432 B 240 C 336 D 144
Question 13 Explanation:
Answer (B) is correct.

Let L be the number of large boxes and S be the number of small boxes. Yesterday, twice as many small boxes as large boxes were used:
S = 2L

We are also told that yesterday 48 boxes in total were used:
S + L = 48

Substituting 2L for S, we have:
2L + L = 48 → 3L = 48 → L = 16
S = 2LS = 2(16) → S = 32

We used 16 Large boxes and 32 Small boxes yesterday.

A large box holds 9 items (per large box), which is three times the quantity held by a small box. This means a small box must hold 3 items (per small box).

In 16 Large boxes we would have:
16 boxes * 9 items per box = 144 items

In 32 Small boxes we would have:
32 boxes * 3 items per box = 96 items

In total, 240 items (144 + 96) were shipped yesterday.
 Question 14
Which of the following expressions is equivalent to:

2(x − 2)2 − 1

 A 4x2 − 16x + 15 B x2 − 4x − 9 C 2x2 − 8x + 7 D 2x2 + 7
Question 14 Explanation:
The correct answer is (C). Solve as shown below:

2(x − 2)2 − 1
2(x − 2)(x − 2) − 1

Use “FOIL”:
2(x2 + (x)(−2) + (−2)(x) + (−2)(−2)) − 1
2(x2 − 2x − 2x + 4) − 1
2(x2 − 4x + 4) − 1

Distribute the 2:
(2x2 − 8x + 8) − 1
2x2 − 8x + 7
 Question 15
w = 500q + 35,000

The weight, in pounds, of a truck with its load is given by the equation above where w represents the total weight of the truck and its load, and q represents the quantity of castings it is hauling. In the equation, what does the number 35,000 represent?

 A The combined weight of the truck and a full load of castings B The weight of the truck with no load C The weight of each casting D The maximum weight of castings that the truck can haul
Question 15 Explanation:
The correct answer is (B).

We are told that w represents the total weight of the truck and its load, and q represents the quantity of castings it is hauling. If a truck is hauling no castings, q = 0. When q = 0, w = 500(0) + 35,000 = 35,000. In other words, the weight of the truck by itself (i.e. hauling no castings) is 35,000 lbs.
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