CBSE Class 7 Mathematics Finding the Unknown MCQs Set B

Question. If 4 fruit juices and 7 milkshakes cost ₹600, it is an.
(a) answer
(b) equation
(c) number
(d) picture

Answer: B

Question. Weight of a brick is 1 kg more than half its weight. The brick weight is.
(a) 1 kg
(b) 2 kg
(c) 5 kg
(d) 10 kg

Answer: B

Question. One quarter of a number plus 9 gives the same number. The number is.
(a) 36
(b) 12
(c) 9
(d) 4

Answer: B

Question. Total feet in the donkey and children problem are.
(a) 28
(b) 80
(c) 40
(d) 20

Answer: B

Question. Height of giraffe is two and a half metres more than half its height. This is a.
(a) riddle
(b) word problem
(c) horse problem
(d) wrong sum

Answer: B

Question. A taxi driver charges a fixed fee plus money for each.
(a) day
(b) kilometre
(c) passenger
(d) bag

Answer: B

Question. In ancient India, a symbol for an unknown was.
(a) yāvat
(b) kālaka
(c) rūpa
(d) number

Answer: B

Question. In the Bakhshali problem, the fourth person gets.
(a) twice as first
(b) four times as third
(c) same as first
(d) nothing

Answer: B

Question. If 3n = 10 + n, we subtract n from both sides to get.
(a) 3n = 10
(b) 2n = 10
(c) 4n = 10
(d) n = 10

Answer: B

Question. If 13 - z = 8, the value of z is.
(a) 21
(b) 5
(c) 13
(d) 8

Answer: B

Question. To solve 5(r + 2) = 10, the first step can be.
(a) add 2
(b) divide both sides by 5
(c) multiply by 10
(d) subtract 10

Answer: B

Question. If 4k + 1 = 13, then k is.
(a) 13
(b) 3
(c) 4
(d) 12

Answer: B

Question. If 4k + 1 = 13, then the value of 4k - 1 is.
(a) 13
(b) 11
(c) 12
(d) 14

Answer: B

Question. If Ax + B = Cx + D, then x is found by.
(a) (D - B) / (A - C)
(b) A + B + C + D
(c) A / B
(d) D / C

Answer: A

Question. If 2x + 3 = x + 5, then the value of x is.
(a) 8
(b) 2
(c) 3
(d) 5

Answer: B

Question. To solve 3x - 10 = 35, the first thing we add to both sides is.
(a) 35
(b) 10
(c) 3
(d) 5

Answer: B

Question. Letter-numbers like x and y represent.
(a) fixed numbers
(b) unknowns
(c) only zero
(d) school names

Answer: B

Question. In ancient India, the two sides of equation were written.
(a) side by side
(b) one below the other
(c) on different pages
(d) in different colours

Answer: B

Question. If 3u - 7 = 2u + 3, the value of u is.
(a) 4
(b) 10
(c) 7
(d) 3

Answer: B

Question. In ancient India, the symbol nīlaka was for the colour.
(a) black
(b) blue
(c) red
(d) white

Answer: B