CBSE Class 7 Mathematics Expressions using Letter Numbers MCQs Set 05

Question. If the price per pencil c = ₹50, find the total amount earned by selling 18 pencils. Use the expression 18c.
(a) ₹90
(b) ₹500
(c) ₹900
(d) ₹1850

Answer: C

Question. The expression 18c + 11d cannot be simplified further because it contains what type of terms?
(a) Negative terms
(b) Long terms
(c) Unlike terms,
(d) Like terms

Answer: C

Question. The terms 5c and 10c are grouped together because they involve the same letter-number. These are called?
(a) Variable terms
(b) Coefficient terms
(c) Like terms
(d) Simple terms

Answer: C

Question. Which expression means "5 times a number u"?
(a) 5u
(b) u + 5
(c) 5 – u
(d) u ÷ 5

Answer: A

Question. A rectangle is split into two smaller rectangles with areas 4v and 3v. The area of the bigger rectangle is 4v + 3v. This simplifies to?
(a) 7v
(b) 12v
(c) 7v²
(d) 43v

Answer: A

Question. A shop rents chairs (₹40 rent, ₹6 returned) and tables (₹75 rent, ₹10 returned). If x chairs and y tables are rented, the initial total amount paid is?
(a) 40 + 75
(b) 115(x+y)
(c) 40x + 75y
(d) 40x + 10y

Answer: C

Question. The total amount returned by the shopkeeper for x chairs (₹6 returned) and y tables (₹10 returned) is represented by which expression?
(a) 6x + 10y
(b) 6x - 10y
(c) 40x + 75y
(d) 16xy

Answer: A

Question. To find the actual total amount paid after returns, we simplify (40x + 75y) - (6x + 10y). The final simplified expression is?
(a) 34x + 65y
(b) 46x + 85y
(c) 34x - 65y
(d) 40x + 75y

Answer: A

Question. Charu's score is 7p - 3q. If there is no penalty, what will be the value of q?
(a) 3
(b) 7
(c) 1
(d) 0

Answer: D

Question. Which of the following expressions are not equal for all values of y?
(a) 10y – 3 and 10(y – 3)
(b) 5u and 5 × u
(c) 3n and n + n + n
(d) 4(x + y) and 4x + 4y

Answer: A

Question. Simplify the expression 4(x + y) - y. How many terms will the simplified expression 4x + 3y have?
(a) One term
(b) Two terms
(c) Three terms
(d) Four terms

Answer: B

Question. When comparing 5u and 5 + u, if u=8, the value of 5u is?
(a) 13
(b) 40
(c) 58
(d) 85

Answer: B

Question. When comparing 5u and 5 + u, if u=8, the value of 5 + u is?
(a) 40
(b) 85
(c) 13
(d) 58

Answer: C

Question. The expression 10y - 3 means what in words?
(a) 10 times (y minus 3)
(b) 3 less than 10 times y
(c) 10 more than y minus 3
(d) 3 subtracted from y multiplied by 10

Answer: B

Question. What is the simplified form of p + p + p + q?
(a) p + 3q
(b) 3q + p
(c) 3p + q
(d) 4pq

Answer: C

Question. Simplify this expression: p + p + p + q.
(a) 3p + q
(b) 4p + q
(c) 4pq
(d) p + 3q

Answer: A

Question. Simplify this expression: p + q - p + q.
(a) 2p
(b) 2q
(c) p - q
(d) 0

Answer: B

Question. We know the perimeter of a rectangle is l + b + l + b. When we simplify this, we get the expression?
(a) lb
(b) l + b
(c) 2l + 2b
(d) 4lb

Answer: C

Question. The simplified expression 2l + 2b is equal to the initial expression l + b + l + b because they take the same value when we do what?
(a) Add more terms
(b) Replace letter-numbers with numbers
(c) Remove the letters
(d) Multiply the terms

Answer: B

Question. If l = 3 and b = 4, the perimeter l + b + l + b is 14. Using the simplified form 2l + 2b, the value should also be?
(a) 7
(b) 12
(c) 14
(d) 24

Answer: C