CBSE Class 7 Mathematics Finding the Unknown MCQs Set D

Question. Ancient Indian symbols for unknowns like kā and nī were names of.
(a) flowers
(b) colours
(c) kings
(d) cities

Answer: B

Question. In ancient India, known quantities were called.
(a) rūpa
(b) bīja
(c) yāvat
(d) kālaka

Answer: A

Question. In ancient India, the branch of math using symbols was called.
(a) Ganita
(b) Bījagaṇita
(c) Rekhaganita
(d) Al-jabr

Answer: B

Question. The word Bīja means.
(a) fruit
(b) seed
(c) tree
(d) leaf

Answer: B

Question. Fixed delivery charge for snacks is.
(a) 25 rupees
(b) 50 rupees
(c) free
(d) 10 rupees

Answer: B

Question. Brahmagupta wrote his book in the year.
(a) 499 CE
(b) 628 CE
(c) 1150 CE
(d) 825 CE

Answer: B

Question. Multiplication and division are.
(a) inverse operations
(b) same operations
(c) easy operations
(d) long operations

Answer: A

Question. The word algebra comes from the book title.
(a) Bījagaṇita
(b) Hisab al-jabr wal-muqabala
(c) Brāhmasphuṭasiddhānta
(d) Lilavati

Answer: B

Question. In equation 11y = 66, value of y is.
(a) 11
(b) 66
(c) 6
(d) 5

Answer: C

Question. Al-Khwarizmi was a mathematician from present-day.
(a) India
(b) Iraq
(c) Europe
(d) Egypt

Answer: B

Question. Number of friends Madhubanti can invite is.
(a) 18
(b) 5
(c) 13
(d) 20

Answer: C

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

Answer: C

Question. To solve 6y + 7 = 4y + 21, we first subtract.
(a) 7 from both sides
(b) 4y from both sides
(c) 21 from both sides
(d) 6y from both sides

Answer: B

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

Answer: B

Question. Solving 2y + 30 = 60 gives y as.
(a) 30
(b) 15
(c) 45
(d) 60

Answer: B

Question. In a 3-digit number, sum of digits is 15. The number is.
(a) 369
(b) 258
(c) 147
(d) 456

Answer: B

Question. Equation 4x - 4 = 24 comes from Akash's math trick. The number he thought was.
(a) 24
(b) 7
(c) 4
(d) 10

Answer: B

Question. Total marbles with Ramesh and Suresh are.
(a) 30
(b) 60
(c) 90
(d) 100

Answer: B

Question. Price of one horse in the ancient problem was.
(a) 400
(b) 100
(c) 300
(d) 200

Answer: B

Question. After adding 4 to both sides of 5x - 4 = 7, the equation becomes.
(a) 5x = 11
(b) 5x = 3
(c) x = 7
(d) 5x = 4

Answer: A