CBSE Class 7 Mathematics Expressions using Letter Numbers MCQs Set 06

Question. What is the simplified form of 5c + 10c - 2c?
(a) 12c
(b) 15c
(c) 13c
(d) 17c

Answer: C

Question. A shop sold pencils for price c. Total money earned from pencils on Day 1 was 5c, Day 2 was 3c, and Day 3 was 10c. The total money earned from pencils is?
(a) 8c
(b) 15c
(c) 18c
(d) 5310c

Answer: C

Question. The simplification 5 x c + 3 x c + 10 x c = (5 + 3 + 10) x c is an example of which property of numbers?
(a) Commutative property
(b) Associative property
(c) Distributive property
(d) Identity property

Answer: C

Question. If c = ₹50, the total money earned by selling pencils, represented by 18c, is?
(a) ₹1850
(b) ₹68
(c) ₹900
(d) ₹5018

Answer: C

Question. Erasers were sold at price d. If 4, 6, and 1 eraser were sold over three days, the total money earned from erasers is represented by 4d + 6d + 1d. This simplifies to?
(a) 11d
(b) 10d
(c) 461d
(d) d + 11

Answer: A

Question. What is the simplified value of 2y + 3y - 6?
(a) 6y – 5
(b) 5y + 6
(c) y – 6
(d) 5y – 6

Answer: D

Question. The total money earned from both pencils (18c) and erasers (11d) is 18c + 11d. Can this be simplified further?
(a) Yes, to 29cd
(b) Yes, to 29c + d
(c) No, because they have different letter-numbers
(d) No, because numbers are too big

Answer: C

Question. Sets of terms like (5c, 3c, 10c) that use the same letter-numbers are called what?
(a) Grouped terms
(b) Numerical terms
(c) Like terms
(d) Unlike terms

Answer: C

Question. The terms 18c and 11d are different terms because they have different letter-numbers. These are called what?
(a) Simplified terms
(b) Combined terms
(c) Unlike terms
(d) Zero terms

Answer: C

Question. Like terms can be grouped and simplified into a single term. Is this statement correct or incorrect?
(a) Incorrect, only numbers can be simplified
(b) Correct, like terms can be added together
(c) Incorrect, only unlike terms are simplified
(d) Correct, but only when letter-numbers are the same value

Answer: B

Question. A big rectangle has area 4v + 3v. If we simplify this, the area of the big rectangle is?
(a) 12v
(b) v
(c) 7v
(d) 43v

Answer: C

Question. What does the expression 3 + 2 × (y - 1) simplify to?
(a) 2y – 1
(b) 2y + 1
(c) 2y + 3
(d) y + 1

Answer: B

Question. The area of a rectangle AEFD is given by 12n - 4n. This simplifies to?
(a) 16n
(b) 4n
(c) 8n
(d) 48n

Answer: C

Question. A shop rents x chairs for ₹40 each and y tables for ₹75 each. The total initial amount paid is?
(a) 115(x+y)
(b) 40x + 75y
(c) 40 + 75
(d) 115xy

Answer: B

Question. The shop returns ₹6 for each chair (x) and ₹10 for each table (y). The total amount returned is?
(a) 16xy
(b) 6x + 10y
(c) 16(x+y)
(d) 40x + 75y

Answer: B

Question. The total amount paid after returns is (40x + 75y) - (6x + 10y). When we remove the bracket with the negative sign, the expression becomes?
(a) 40x + 75y - 6x + 10y
(b) 40x + 75y - 6x - 10y
(c) 40x + 75y + 6x + 10y
(d) 40x - 75y - 6x - 10y

Answer: B

Question. What is the simplified expression for the total amount paid: 40x + 75y - 6x - 10y?
(a) 34x + 65y
(b) 40x + 10y
(c) 46x + 85y
(d) 34x + 85y

Answer: A

Question. Simplifying the expression 40x + 75y - 6x - 10y by grouping like terms gives?
(a) 46x + 85y
(b) 34x + 65y
(c) 34x + 85y
(d) 46x + 65y

Answer: B

Question. Charu's score in the first quiz round is 7p - 3q. If p=4 (score for correct answer) and q=1 (penalty), her score in that round is?
(a) 28
(b) 25
(c) 18
(d) 31

Answer: B

Question. In Charu's total score expression (7p - 3q) + (8p - 4q) + (6p - 2q), when we group the like terms p together, we get?
(a) (7-8-6)p
(b) (7+8+6)p
(c) (7+8)p - 6p
(d) (7+8-6)p

Answer: B