Algebra Test 7

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Algebra Test 7

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Question 1/30
1 / -0

Directions For Questions

7/8

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Three unbiased coins are tossed. What is the probability of getting at most two heads?

Correct

Wrong

Skipped
A
3/4

Correct

Wrong

Skipped
B
3/8

Correct

Wrong

Skipped
C
1/4

Correct

Wrong

Skipped
D
7/8

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Solutions
7/8
Question 2/30
1 / -0

Directions For Questions

7/44

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A bag contains 7 green and 5 black balls. Three balls are drawn one after the other. The probability of all three balls being green, if the balls drawn are not replaced will be?

Correct

Wrong

Skipped
A
12/35

Correct

Wrong

Skipped
B
21/36

Correct

Wrong

Skipped
C
343/1728

Correct

Wrong

Skipped
D
7/44

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Solutions
7/44
Question 3/30
1 / -0

Directions For Questions

0.4 liter

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Lisa will make punch that is 25% fruit juice by adding pure fruit juice to a 2-liter mixture that is 10% pure fruit juice. How many liters of pure fruit juice does she need to add?

Correct

Wrong

Skipped
A
0.5 liter

Correct

Wrong

Skipped
B
8 liters

Correct

Wrong

Skipped
C
0.4 liter

Correct

Wrong

Skipped
D
2 liters

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Solutions
0.4 liter
Question 4/30
1 / -0

Directions For Questions

0

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9 n = 10?

Correct

Wrong

Skipped
A
0

Correct

Wrong

Skipped
B
1

Correct

Wrong

Skipped
C
2

Correct

Wrong

Skipped
D
3
Question 5/30
1 / -0

Directions For Questions

8

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7 - (-2) (-1)?

Correct

Wrong

Skipped
A
8

Correct

Wrong

Skipped
B
6

Correct

Wrong

Skipped
C
10

Correct

Wrong

Skipped
D
4

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Solutions
8
Question 6/30
1 / -0

Directions For Questions

4x(7x - 1)

...view full instructions

28x

Correct

Wrong

Skipped
A
4x(7x - x)

Correct

Wrong

Skipped
B
4x(7x - 1)

Correct

Wrong

Skipped
C
4(7x2 - x)

Correct

Wrong

Skipped
D
2x(14x - 2x)

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Solutions
4x(7x - 1)
Question 7/30
1 / -0

Directions For Questions

-42

...view full instructions

-4

Correct

Wrong

Skipped
A
154

Correct

Wrong

Skipped
B
-6

Correct

Wrong

Skipped
C
-42

Correct

Wrong

Skipped
D
6

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Solutions
-42
Question 8/30
1 / -0

Directions For Questions

one half

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A coin is thrown three times. It lands on heads twice and tails once. What is the probability that the coin will land on tails with the next throw?

Correct

Wrong

Skipped
A
0

Correct

Wrong

Skipped
B
1

Correct

Wrong

Skipped
C
1/3

Correct

Wrong

Skipped
D
one half

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Solutions
one half
Question 9/30
1 / -0

Directions For Questions

2/5

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What is the probability the spinner will stop on a blue or green?

Correct

Wrong

Skipped
A
2/6

Correct

Wrong

Skipped
B
1/2

Correct

Wrong

Skipped
C
3/5

Correct

Wrong

Skipped
D
2/5

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Solutions
2/5
Question 10/30
1 / -0

Directions For Questions

Rs.2x-85/100

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A boy had 2x rupees. He spent 85 paise. How many rupees were left with him ?

Correct

Wrong

Skipped
A
Rs.(2x-85)

Correct

Wrong

Skipped
B
Rs (200x-85)

Correct

Wrong

Skipped
C
Rs.2x-85/100

Correct

Wrong

Skipped
D
Rs (2x-85)/100

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Solutions
Rs.2x-85/100
Question 11/30
1 / -0

Directions For Questions

7/8

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What is the probability the spinner will not stop on 8?

Correct

Wrong

Skipped
A
1/9

Correct

Wrong

Skipped
B
2/5 1/9

Correct

Wrong

Skipped
C
2/4

Correct

Wrong

Skipped
D
7/8

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Solutions
7/8
Question 12/30
1 / -0

Directions For Questions

14

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(-7)(-2)?

Correct

Wrong

Skipped
A
-14

Correct

Wrong

Skipped
B
-5

Correct

Wrong

Skipped
C
14

Correct

Wrong

Skipped
D
-9

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Solutions
14
Question 13/30
1 / -0

Directions For Questions

0

...view full instructions

-9 9 ?

Correct

Wrong

Skipped
A
-1

Correct

Wrong

Skipped
B
1

Correct

Wrong

Skipped
C
18

Correct

Wrong

Skipped
D
0
Question 14/30
1 / -0

Directions For Questions

5

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11 - x = 6?

Correct

Wrong

Skipped
A
10

Correct

Wrong

Skipped
B
-5

Correct

Wrong

Skipped
C
5

Correct

Wrong

Skipped
D
17

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Solutions
5
Question 15/30
1 / -0

Directions For Questions

2/11

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P and Q in a ring with 10 persons. What is the probability that X and Y will sit together?

Correct

Wrong

Skipped
A
4/9

Correct

Wrong

Skipped
B
2/11

Correct

Wrong

Skipped
C
3/11

Correct

Wrong

Skipped
D
2/9

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Solutions
2/11
Question 16/30
1 / -0

Directions For Questions

5x3 3x2 - 6x - 8

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Which of the following polynomials is in standard form?

Correct

Wrong

Skipped
A
5x3 - x 3x2 - 8

Correct

Wrong

Skipped
B
5x3 3x2 - 6x - 8

Correct

Wrong

Skipped
C
-8 - x 3x2 5x3

Correct

Wrong

Skipped
D
3x2 5x3 - x - 8

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Solutions
5x3 3x2 - 6x - 8
Question 17/30
1 / -0

Directions For Questions

same

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A unit vector has _______ direction to that of the main vector.?

Correct

Wrong

Skipped
A
normal downwards

Correct

Wrong

Skipped
B
normal upwards

Correct

Wrong

Skipped
C
same

Correct

Wrong

Skipped
D
opposite

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Solutions
same
Question 18/30
1 / -0

Directions For Questions

a3

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Find the greatest common factor of a3 and a5 ?

Correct

Wrong

Skipped
A
a15

Correct

Wrong

Skipped
B
a2

Correct

Wrong

Skipped
C
a8

Correct

Wrong

Skipped
D
a3

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Solutions
a3
Question 19/30
1 / -0

Directions For Questions

-2i - 4j 2k

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What should be added in vector to get its resultant a unit vector i.?

Correct

Wrong

Skipped
A
-2i 4j 2k

Correct

Wrong

Skipped
B
2i 4j 2k

Correct

Wrong

Skipped
C
-2i - 4j 2k

Correct

Wrong

Skipped
D
None of these

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Solutions
-2i - 4j 2k
Question 20/30
1 / -0

Directions For Questions

-30

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9 2(7×3) – 9

Correct

Wrong

Skipped
A
33

Correct

Wrong

Skipped
B
150

Correct

Wrong

Skipped
C
32

Correct

Wrong

Skipped
D
-30

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Solutions
-30
Question 21/30
1 / -0

Directions For Questions

15; 4x2

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Find the missing terms: (x

Correct

Wrong

Skipped
A
-15; -2x2

Correct

Wrong

Skipped
B
5; 4x2

Correct

Wrong

Skipped
C
15; 4x2

Correct

Wrong

Skipped
D
15; -2x2

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Solutions
15; 4x2
Question 22/30
1 / -0

Directions For Questions

add, multiply, divide, subtract

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In these series which one is correct operation: 2(3 4) - 6/3 ?

Correct

Wrong

Skipped
A
add, multiply, subtract, divide

Correct

Wrong

Skipped
B
add, subtract, multiply, divide

Correct

Wrong

Skipped
C
add, multiply, divide, subtract

Correct

Wrong

Skipped
D
multiply, add, subtract, divide

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Solutions
add, multiply, divide, subtract
Question 23/30
1 / -0

Directions For Questions

1/9

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What is the probability of getting a sum 9 from two throws of a dice?

Correct

Wrong

Skipped
A
1/9

Correct

Wrong

Skipped
B
1/6

Correct

Wrong

Skipped
C
1/12

Correct

Wrong

Skipped
D
1/8

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Solutions
1/9
Question 24/30
1 / -0

Directions For Questions

3ab2(ab2 - 4b 5)

...view full instructions

3a

Correct

Wrong

Skipped
A
3ab(ab3 - 4b2 4b)

Correct

Wrong

Skipped
B
3a(ab4 4b3 5b2)

Correct

Wrong

Skipped
C
3ab2(ab2 - 4b 5)

Correct

Wrong

Skipped
D
3b2(a2b2 - 4ab 5a)

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Solutions
3ab2(ab2 - 4b 5)
Question 25/30
1 / -0

Directions For Questions

x5 x3

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Which expression is equivalent to x6x2?

Correct

Wrong

Skipped
A
x7 x3

Correct

Wrong

Skipped
B
x4 x3

Correct

Wrong

Skipped
C
x9 x3

Correct

Wrong

Skipped
D
x5 x3

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Solutions
x5 x3
Question 26/30
1 / -0

Directions For Questions

71/96

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The odds against an event are 5:3 and the odds in favour of another independent event are 7:5. Find the probability that at least one of the two events will occur.?

Correct

Wrong

Skipped
A
13/96

Correct

Wrong

Skipped
B
71/96

Correct

Wrong

Skipped
C
69/96

Correct

Wrong

Skipped
D
52/96

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Solutions
71/96
Question 27/30
1 / -0

Directions For Questions

6a2b4

...view full instructions

Simplify:18a

Correct

Wrong

Skipped
A
6a2b4c

Correct

Wrong

Skipped
B
6a2b4

Correct

Wrong

Skipped
C
6a6b6

Correct

Wrong

Skipped
D
6a2b5

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Solutions
6a2b4
Question 28/30
1 / -0

Directions For Questions

x=?2; x=3

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What is the complete solution to the equation |3-6x|=15?

Correct

Wrong

Skipped
A
x=?2; x=?3

Correct

Wrong

Skipped
B
x=2; x=3

Correct

Wrong

Skipped
C
x=?2; x=3

Correct

Wrong

Skipped
D
x=2; x=?3

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Solutions
x=?2; x=3
Question 29/30
1 / -0

Directions For Questions

7x 4

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x - 1 (6x 5)?

Correct

Wrong

Skipped
A
7x 4

Correct

Wrong

Skipped
B
7x 6

Correct

Wrong

Skipped
C
6x - 4

Correct

Wrong

Skipped
D
6 x2 - 5

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Solutions
7x 4
Question 30/30
1 / -0

Directions For Questions

Rs (12x-365z)

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A man's monthly salary is Rs. x. If his expenses per day are Rs.z,what are his savings in a year(1 year=365 days ) ?

Correct

Wrong

Skipped
A
Rs (12x-z)

Correct

Wrong

Skipped
B
Rs (12x-365z)

Correct

Wrong

Skipped
C
Rs (x-z)

Correct

Wrong

Skipped
D
Rs (x-12z)

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Solutions
Rs (12x-365z)

Question 1/30

3/4

3/8

1/4

7/8

Question 2/30

12/35

21/36

343/1728

7/44

Question 3/30

0.5 liter

8 liters

0.4 liter

2 liters

Question 4/30

0

1

2

3

Question 5/30

8

6

10

4

Question 6/30

4x(7x - x)

4x(7x - 1)

4(7x2 - x)

2x(14x - 2x)

Question 7/30

154

-6

-42

6

Question 8/30

0

1

1/3

one half

Question 9/30

2/6

1/2

3/5

2/5

Question 10/30

Rs.(2x-85)

Rs (200x-85)

Rs.2x-85/100

Rs (2x-85)/100

Question 11/30

1/9

2/5 1/9

2/4

7/8

Question 12/30

-14

-5

14

-9

Question 13/30

-1

1

18

0

Question 14/30

10

-5

5

17

Question 15/30

4/9

2/11

3/11

2/9

Question 16/30

5x3 - x 3x2 - 8

5x3 3x2 - 6x - 8

-8 - x 3x2 5x3

3x2 5x3 - x - 8