# ML Aggarwal Algebra Exe-9.3 Class 6 ICSE Maths Solutions

ML Aggarwal Algebra Exe-9.3 Class 6 ICSE Maths Solutions. We Provide Step by Step Answer of  Exe-9.3 Questions for Algebra as council prescribe guideline for upcoming board exam. Visit official Website CISCE for detail information about ICSE Board Class-6.

## ML Aggarwal Algebra Exe-9.3 Class 6 ICSE Maths Solutions

 Board ICSE Publications Avichal Publishig Company (APC) Subject Maths Class 6th Chapter-9 Algebra Writer ML Aggarwal Book Name Understanding Topics Solution of Exe-9.3 Questions Edition 2023-2024

### Algebra Exe-9.3

ML Aggarwal Class 6 ICSE Maths Solutions

Page-190

#### Question 1. Write all the terms of each of the following algebraic expressions:

(i) 3 – 7x

(ii) 2 – 5a + (3/2)b

(iii) 3x5 + 4y3 – 7xy2 + 3

(iv) 2x2 – (3/x) + 5/x2 + 9

(i) 3 – 7x the term is 3, – 7x

(ii) 2 – 5a + (3/2)b the term is 2, – 5a, + (3/2)b

(iii) 3x5 + 4y3 – 7xy2 + 3 the term is 3x5 ,+ 4y3 ,- 7xy2 ,+ 3

(iv) 2x2 – (3/x) + 5/x2 + 9 the term is 2x2 ,- (3/x), + 5/x2 ,+ 9

#### Question 2. Write down the algebraic expression whose terms are :

(i) 5, -2x

(ii) -3, 5x2 , -7x5

(iii) a2 , -2b2 , 3c2 , 7

(iv) 2x, -3/x, 7y/x2 , 5z, -1.

(i) 5, -2x is 2 term

(ii) -3, 5x2 , -7x5   – 2 term

(iii) a2 , -2b2 , 3c2 , 7  – 4 term

(iv) 2x, -3/x, 7y/x2 , 5z, -1. – 5 term

#### Question 3. State the number of terms in each of the following algebraic expressions:

(i) x ÷ 2 + y – 3

(ii) (2x  y -3)/5

(iii) 5 × ab – 7

(iv) 7 × a + b ÷ 3 – c + 5.

(i) 3 terms

(ii) 3 terms

(iii) 2 terms

(iv) 4 terms

#### Question 4. Identify monomials, binomials and trinomials from the following algebraic expressions:

(i) x2 – 2y2

(ii) xy + yz + zx

(iii) 5 + 5x

(iv) 5x

(v) 5/x + 3

(vi) -7

(vii) a2 – b2 – c2 + 5abc

(viii) -5a2b2c2

(ix) 1 + x + x2 + x3 + x2

(x) x ÷ 5 + y ÷ 3

(xi) 5p × ab

(xii) 3 ÷ a – 2 × b + c.

(i) binomial

(ii) trinomial

(iii) binomial

(iv) monomial

(v) binomial

(vi) monomial

(vii) multinomial

(viii) monomial

(ix) multinomial

(x) binomial

(xi) monomial

(xii) trinomial

(i) -7x

(ii) -2x3y3

(iii) 6abcd2

(i) -7, x

(ii) -2, x3y3

(iii) 6, abcd2

#### Question 6. Write the numerical coefficient of each term of the expression:

x4 – 5xy2 + 7x2 – (2/3)x – 1/2

-5, 7, – (2/3), – 1/2

(i) x

(ii) 7x

(iii) -xy2

(iv) xy

(v) z3

(vi) -7z

(vii) xyz

(viii) 7yz2

(i) -7y2z3

(ii) -y2z3

(iii) 7z3

(iv)  -7yz3

(v) -7xy2

(vi)  xy2z2

(vii)  -7yz2

(viii)  -xyz

### Algebra Exe-9.3

ML Aggarwal Class 6 ICSE Maths Solutions

Page-191

#### Question 8. State true or false:

(i) If 5 is constant and y is variable, then 5y and 5 + y are variable

(ii) 7x has two terms, 7 and x

(iii) 5 + xy is a trinomial

(iv) 7a x bc is a binomial

(v) 7x3 + 2x2 + 3x – 5 is a polynomial

(vi) 7x3 + 2x2 + 3x – 5 is a multinational

(vii) 2x2 – 3/x is a polynomial

(viii) coefficient of x in -3xy is -3

(ix) 3xy, -2yx are like terms.

(i) True

(ii) False

(iii) False

(iv) False

(v) True

(vi) True

(vii) False

(viii) False

(ix) True

#### Question 9. In the following, which pairs contain like terms?

(i) 5x, -2x

(ii) 5x, 5y

(iii) -2xyz, -3x2y2z2

(iv) 10 xyz, -10xyz

(v) 2x2y, 2xy2

(vi) 2xy, -3yx

(vii) x, x2

(viii) 6, 6x

(ix) 2xy, 3xyz

(i) 5x, -2x , (iv) 10 xyz, -10xyz, (vi) 2xy, -3yx contain like terms

#### Question 10. Identify which of the following algebraic expression are polynomias. If so, write their degrees.

(i) (2/3)x2 – (5/7)x – 1/4

(ii) 3x2 + (2/x) – 3

(iii) x2 = (2/3)x7 – 5x8

(i) polynomial, 2

(ii) not a polynomial

(iii) polynomial, 8

#### Question 11.  Which out of following are expressions with numbers only?

(i) 2y + 3
(ii) (7 × 20) – 82
(iii) 5 × (21 – 7) + 9 x 2
(iv) 5 -11 n
(v) (5 × 4) – 45 + p
(vi) 3 × (11 + 7) – 24 + 3

(iii) 5 × (21 – 7) + 9 × 2,
(vi) 3 × (11 + 7) – 24 ÷ 3 are expressions with numbers only.

#### Question 12. Write expression for the following:

(i) 11 added to 2 m
(ii) 11 subtracted from 2 m
(iii) 3 added to 5 times y
(iv) 3 subtracted from 5 times y
(v) y is multiplied by -8 and then 5 is added to the result
(vi) y is multiplied by 5 and then the result is subtracted from 16.

(i) 2m + 11
(ii) 2m – 11
(iii) 5y + 3
(iv) 5y – 3
(v) -8y + 5
(vi) 16 – 5y

#### Question 13. Write the following in mathematical form using signs and symbols:

(i) 6 more than thrice a number x.
(ii) 7 taken away from y.
(iii) 3 less than quotient of x by y.

(i) 3x + 6
(ii) (x/y) – 3
(iii) y – 7

#### Question 14. Form six expressions using t and 4. Use not more than one number operation and every expression must have t in it.

t + 4, t – 4, 4 – t, 4t, t/4, 4/t

#### Question 15. A student scored x marks in English but the teacher deducted 5 marks for bad handwriting. What was the student’s final score in English?

Marks in English = x
Deducted = 5
Final score = x – 5

(3y + 2) years

#### Question 17. Mohini is x years old. Express the following in algebraic form:

(i) three times Mohini’s age next year.
(ii) four times Mohini’s age 3 years ago.
(iii) the present age of Mohini’s uncle, if his uncle is 5 times as old as Mohini will be two years from now.

(i) Let Mohini’s age be x.

Mohini’s age next year = x + 1

Three times mohini’s age next year = 3(x + 1) years

(ii) Let Mohini’s age be x.

Mohini’s age 3 years ago = x – 3

Four times Mohini’s age 3 years ago = 4(x−3) years

(iii) Let Mohini’s age be x.

5(x + 2) years