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RBSE Solutions for Class 6 Maths Chapter 12 Algebra Ex 12.2

March 16, 2019 by Fazal Leave a Comment

RBSE Solutions for Class 6 Maths Chapter 12 Algebra Ex 12.2 is part of RBSE Solutions for Class 6 Maths. Here we have given Rajasthan Board RBSE Class 6 Maths Chapter 12 Algebra Exercise 12.2.

Board RBSE
Textbook SIERT, Rajasthan
Class Class 6
Subject Maths
Chapter Chapter 12
Chapter Name Algebra
Exercise Ex 12.2
Number of Questions 9
Category RBSE Solutions

Rajasthan Board RBSE Class 6 Maths Chapter 12 Algebra Ex 12.2

Question 1.
With the numbers 3, 7 and 4, form (RBSESolutions.com) arithmetic expressions using
(i) Only addition and subtraction operations.
(ii) Only multiplication and addition operations.
Solution:
(i) 3 + 7 + 4,
3 – 7 + 4,
3 + 7 – 4,
– 3 + 7 + 4,
– 3 + 7 – 4,
– 3 – 7 + 4,
– 3 – 7 – 4.

(ii) 3 × 7 + 4,
3 × 7 × 4,
3 + 7 × 4,
3 + 4 × 7,
3 × 4 + 7.

RBSE Solutions

Question 2.
For each of the below expressions, mention (RBSESolutions.com) whether it is an arithmetic expresion or algebric expression?
(i) (3x + 5)
(ii) 5 × 4 + 7
(iii) 3 + 4 × 3 + 5
(iv) 2x + 1
(v) \(\frac { x }{ 2 } \) + 5 – x
(vi) 3x
Solution:
Algebric expression :
(i) 3x + 5
(iv) 2x + 1
(v) \(\frac { x }{ 2 } \) + 5 – x
(vi) 3x
Arithmetic expression :
(ii) 5 × 4 +7
(ii) 3 + 4 × 3 + 5

Question 3.
Observe the expressions in the table carefully. Mention, (RBSESolutions.com) what all operation are used to form that expression by putting the sign of right/wrong in the table.
RBSE Solutions for Class 6 Maths Chapter 12 Algebra Ex 12.2 image 1
Solution:
RBSE Solutions for Class 6 Maths Chapter 12 Algebra Ex 12.2 image 2

Question 4.
Write algebraic expression (RBSESolutions.com) for the following situations :
(i) 7 added to a
(ii) 10 subtracted from b
(iii) x multiplied by 4
(iv) x divided by 4
(v) x subtracted from 7
(vi) 10 divided by q.
Solution:
RBSE Solutions for Class 6 Maths Chapter 12 Algebra Ex 12.2 image 3

Question 5.
Give expressions for (RBSESolutions.com) the following cases :
(i) 15 added to 2n
(ii) 15 subtracted from 2x
(iii) 3 added to twice of p
(iv) 3 subtracted from twice of q
(v) 11 subtracted from the product of y and 5
(vi) 11 added to the product of z and – 3
Solution:
RBSE Solutions for Class 6 Maths Chapter 12 Algebra Ex 12.2 image 4

Question 6.
Form algebraic expressions (RBSESolutions.com) using q, 5 and – 3.
Solution:
(i) q + 5 – 3
(ii) q – 5 – 3
(iii) -q + 5 – 3
(iv) q ÷ 5 + (- 3)
(v) 5q – 3
(vi) – 5q – 3
(vii) \(\frac { 5 }{ q } -3\)
(viii) \(\frac { -q }{ 5 } -3\)
(ix) 5 – 3q
(x) – 5 – 3q

RBSE Solutions

Question 7.
Nathu has Rs. x with (RBSESolutions.com) him Then,
(i) How much money do Bina have if she owns twice as much as Nathu does?
(ii) How much money is Nathu left with after buying books worth Rs. 150?
(iii) How much money do Seema have if she owns half as much as Nathu has initially?
(iv) How much money do Milli have if she owns thrice as much as Nathu does?
Solution:
(i) Nathu has Rs. = x
Bina has money = Twice money as much
as Nathu’s money = 2 × x = Rs. 2x

(ii) Nathu purchased books of = Rs. 150
money remains = Rs. (x – 150)

(iii) Nathu has intial money = Rs. x
Seema has money = half money as much
as Nathu’s initial money = \(\frac { x }{ 2 }\) Rs.

(iv) Milli has money = Thrice money as much
as Nath’s money = 3 × x = Rs. 3x

Question 8.
The height of a triangle is 5 more than (RBSESolutions.com) twice of its base. What is its height if base is b?
Solution:
Base of triangle= b unit
Height of triangle = 5 more than twice of base
= 2 × b + 5 = (2b + 5) unit

Question 9.
The present age of Vimal is p years. then
(i) How old was he 10 years ago?
(ii) How old will Vimal be 5 years from now?
(iii) Vimal’s aunt is (RBSESolutions.com) thrice as old as vimal. How old is vimal’s aunt?
(iv) Age of Vimal’s mother is 5 years less than twice of vimal’s age. How old is his mother?
Solution:
Vimal’s present age = P years
(i) His age 10 years ago = (p – 10) years
(ii) Vimal’s age after 5 years from now = (p + 5) years
(iii) Vimal’s aunt age = 3 × p = 3p years
(iv) Vimal’s mother age = 5 years less than twice of vimal’s age = 2 × p – 5 = (2p – 5) years

RBSE Solutions

We hope the RBSE Solutions for Class 6 Maths Chapter 12 Algebra Ex 12.2 will help you. If you have any query regarding Rajasthan Board RBSE Class 6 Maths Chapter 12 Algebra Exercise 12.2, drop a comment below and we will get back to you at the earliest.

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