Finding the Unknown Class 7 MCQ

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Maths Class 7 Maths 105 views Jun 15, 2026 Reviewed & updated Sep 17, 2026

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Finding the Unknown Class 7 MCQ

Finding the Unknown Class 7 MCQ

Question 1.

Swati and Ria made 35 baskets. If Swati made b baskets and Ria made 4 less than twice what Swati made, which of the following equations is true?

(a) b - 4 = 35

(b) 2b - 4 = 35

(d) 36 + 4 = 35

Solution:

Question 2.

Refer to the statements below about expressing an equation in statement form:

Statement 1 : x - 6 = 16 can be expressed as the difference between x and 6 is 16.

Statement 2 : (2 + 3)t = 35 can be expressed as 3 times a number plus 2 gives 35.

Statement 3 : p - 1 = 11 can be expressed as 1 subtracted from p is 11.

Which of these statement(s) is/are true?

(a) Only statement 3

(b) Both statements 1 and 3

(d) Statements 1, 2 and 3

Solution:

(b) Both statements 1 and 3

Question 3.

Which of these is a solution for the equation given below?

x - 12 = 20

(a) x = 8

(b) x = - 8

(d) x = - 32

Solution:

Question 4.

To solve the equation 2(x - 4) = 16, two students rewrite it as shown:

Aman : x - 4 = 8

Ankita : 2x - 8 = 16

Which student rewrites the equation correctly to solve it?

(a) Only Aman

(b) Only Ankita

(d) Neither Aman nor Ankita

Solution:

Question 5.

Which option shows the correct way to solve the equation 2k - 5 = 9 ?

(a) Add 5 to both the sides and then divide both the sides by 2.

(b) Subtract 5 from both the sides and then divide both the sides by 2.

(d) Subtract 5 from both the sides and then multiply both the sides by 2.

Solution:

(a) Add 5 to both the sides and then divide both the sides by 2.

Question 6.

Arpita bought 10 pens from a shop and gave a ₹ 100 note to the shopkeeper. The shopkeeper returned ₹ 40 to her. If the cost of each pen is the same, what is the cost of each pen ?

(a) ₹ 4

(b) ₹ 6

(d) ₹ 14

Solution:

(b) ₹ 6

Question 7.

Rekha and Sonam took some money and went to a market. Sonam bought a colouring book for ₹ 135 and Rekha spend ₹ 535 to buy a set of story hook. After the shopping, both of them have the same amount of money left. If Rekha took twice the amount of money that Sonam took, which option shows the amount of money each one took at the beginning?

(a) Rekha: ₹ 200; Sonam: ₹ 400

(b) Rekha: ₹ 400; Sonam: ₹ 200

(d) Rekha: ₹ 400; Sonam: ₹ 800

Solution:

Case Study

Question 1.

(a) Which of the following equations can be formed using x = 6 ?

(i) 2x + 3 = 13

(ii) 2x - 11 = 1

(iii) 4x - 9 = 21

(iv) 3x + 2 = 13

Fill in the blanks :

(b) Solution of 2x + 3 = 13 is ______.

(d) Solution of &r + 2 = 13 is ______.

(e) Solution of2x + 3 + 2x - 11 = 13 + 1 is ______.

Solution:

(a) (ii)

(b) x = 5

(d) x = [latex]\frac {11}{3}[/latex]

(e) x = [latex]\frac {11}{2}[/latex]

Question 2.

Finding the numbers!

Sum of two numbers is 84 and one number is thrice of the other.

Fill in the blanks :

(a) If smaller number is x, then the larger number is ______.

(b) LHS of the equation should be ______.

(d) The equation formed is _______.

(e) Solution of the formed equation is

(i) x = 20

(ii) x - 19

(iii) x = 21

(iv) x = 22

(f) The two numbers are ________ and _________.

Solution:

(a) 3x

(b) x + 3x

(d) 4x = 84

(e) (iii)

(f) 21 and 63.

Question 3.

Mathematics Quiz

30 prizes consisting of only first and second prizes are to given in an mathematics quiz. Values of the first and second prizes are respectively ₹ 5000 and ₹ 2000. The total prize money is ₹ 87000.

Fill in the blanks :

(а) If number of first prizes is x, then number of second prizes is _______.

(b) Total value of prizes in terms of x is _______.

(d) Solution of the formed equation is

(i) x = 8

(ii) x = 9

(iii) x = 10

(iv) x = 11

(e) Number of first prizes is and number of second prizes is _______.

Solution:

(a) 30 - x

(b) 3000x + 60000

(d) (ii)

(e) 9, 21.

Finding the Unknown Class 7 MCQ

Finding the Unknown Class 7 MCQ

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