CBSE Class 7 Mathematics Finding the Unknown MCQs Set A

Question. Ancient symbol rū was used for.
(a) rupee
(b) known quantity
(c) negative
(d) horse

Answer: B

Question. To solve 5x - 4 = 7, first thing we add to both sides is.
(a) 7
(b) 5
(c) 4
(d) 11

Answer: C

Question. Word algebra comes from the book title.
(a) Hisab
(b) al-jabr
(c) muqabala
(d) wal

Answer: B

Question. Jahnavi starts saving with initial amount of.
(a) 5050
(b) 4000
(c) 650
(d) 500

Answer: B

Question. A dot over a number in ancient India meant number is.
(a) big
(b) small
(c) negative
(d) zero

Answer: C

Question. Jahnavi and Sunita will have same money after.
(a) 5 months
(b) 10 months
(c) 7 months
(d) 12 months

Answer: C

Question. To solve u / 15 = 6, we do.
(a) 6 + 15
(b) 6 - 15
(c) 6 multiplied by 15
(d) 15 divided by 6

Answer: C

Question. Solving 3x + 4 = 7, x will be.
(a) 1
(b) 2
(c) 3
(d) 4

Answer: A

Question. Madhubanti bought snack plates for.
(a) 50 rupees
(b) 25 rupees
(c) 500 rupees
(d) 100 rupees

Answer: B

Question. Brahmagupta gave formula for Ax + B = Cx + D. Formula is.
(a) x = (D-B) / (A-C)
(b) x = A + B + C + D
(c) x = B - D
(d) x = A / C

Answer: A

Question. Trial and error method is.
(a) always very fast
(b) can be inefficient
(c) only for small numbers
(d) not for school

Answer: B

Question. Ramesh and Suresh have total marbles.
(a) 30
(b) 90
(c) 60
(d) 100

Answer: C

Question. In ancient India, two sides of equation were written.
(a) side by side
(b) one below other
(c) in different books
(d) only in mind

Answer: B

Question. If 2n + 1 = 99, then n value is.
(a) 100
(b) 50
(c) 49
(d) 98

Answer: C

Question. Value of 14593 - 1459 + 145 - 14 + 88 is 13353. Value without 88 is.
(a) 13353 + 88
(b) 13353 - 88
(c) 88
(d) 0

Answer: B

Question. Solving 2x - 9 = -3, value of x will be.
(a) 6
(b) 3
(c) 9
(d) 12

Answer: B

Question. In matchstick pattern, position n has sticks equal to.
(a) 2n
(b) 2n + 1
(c) n + 1
(d) 3n

Answer: B

Question. Sunita saves every month.
(a) 650
(b) 4000
(c) 500
(d) 5050

Answer: C

Question. If 5s = 3s, then s must be.
(a) 2
(b) 5
(c) 0
(d) 3

Answer: C