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#### Algebra Book Back Questions

7th Standard EM

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Maths

Time : 00:45:00 Hrs
Total Marks : 30
4 x 1 = 4
1. An algebraic statement which is equivalent to the verbal statement “Three times the sum of x and y” is

(a)

3(x + y)

(b)

3 + x + y

(c)

3x + y

(d)

3 + xy

2. Choose the pair of like terms

(a)

7p, 7x

(b)

7r, 7x

(c)

−4x, 4

(d)

−4x, 7x

3. The value of 7a − 4b when a = 3, b = 2 is

(a)

21

(b)

13

(c)

8

(d)

32

4. The solution of 3x + 5 = x + 9 is

(a)

2

(b)

3

(c)

5

(d)

4

5. 3 x 1 = 3
6. The variable in the expression 16x − 7 is _________

()

x

7. The constant term of the expression 2y − 6 is ________

()

-6

8. The number of terms in the expression 3ab + 4c –9 is ________.

()

three

9. 4 x 1 = 4
10. x + ( −x) = 0

(a) True
(b) False
11. The co-efficient of ab in the term 15abc is 15.

(a) True
(b) False
12. When y = −1, the value of the expression 2y − 1 is 3

(a) True
(b) False
13. Sum of a - b + c and -a + b - c is zero.

(a) True
(b) False
14. 3 x 3 = 9
15. Find the numerical co-efficient of the following terms. Also, find the co efficient of x and y in each of the term: 3x, - 5xy, - yz, 7xyz, y, 16yx.

16. A person has Rs.960 in denominations of Rs.1, Rs.5 and Rs.10 notes. The number of notes in each denomination is equal. What is the total number of notes?

17. A cricket team won two matches more than they lost. If they win they get 5 points and for loss -3 points, how many matches have they played if their total score is 50.

18. 2 x 5 = 10