question 4,5,6,7,8 Name Date Class PSAT Practice Test 1 Section 2 continued 4. I

Question

question 4,5,6,7,8

Name Date Class PSAT Practice Test 1 Section 2 continued 4. If 3r-1 s an odd integer, what is true 7. If V3x 4 4x y and x 3, what is about 3n 1? y? (A) It is an odd integer. A) -5 (B) It is an even integer. B) -4 (C) It can bo an odd or even integer. C) 2 (D) It is a prime number. (D) 4. (E) It is a perfect squarc. (E) 5 5. Mike can cut a 40 foot by 20 foot yard with a push mower in 25 minutes. At this rate, how many more minutes would it Lake him lo cut a 40 looi by 30 foot yard? (A) 12.5 (B) 15 (C) 22.5 o 1 (D) 25 (E) 32.5 45% 8. the line shown above is shifted down 2v2. 5 units and to the right 4 units, what is the x-intercept of the new line? (A) 5.4 6. What is the area, in square units, ot the (B) (-4, 0) parallclogram shown above? (C) (4, 0) (A) 6 D) (5, 0) (B) 8 (E) (5, 4) (C) 12 (D) 16 If you finish before time is called, you may (E) Cannot bc determined from the STOP check your work on this section only, Do not turn to any other section in the test. information given. Holt College Entrance Exam

Explanation / Answer

4) If 3n-1 is an odd integer.

If we add 1 to it ,it becomes an even integer. So 3n-1+1 =3n is even integer.

If we again add 1 to 3n it becomes odd. so 3n+1 is an odd integer.

Answer is Option A

5) Area of the 40 ft by 20 ft yard = 40 * 20 ft^2 =800 ft^2

It is given he cuts it in 25 minutes.

So 800 ft^2 are cut in 25 minutes.

Area of 40 ft by 30 ft yard = 40 * 30 ft^2 =1200 ft^2

Time needed to cut 1200 ft^2 = 1200 * 25/800 =37.5 minutes

Extra time needed to cut it = 37.5 -25 =12.5 minutes

Option A

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