CBSE Class 8 Mathematics A Story of Numbers MCQs Set J

Question. If first landmark number is 1 and every next is multiplied by n, it is called
(a) Simple system
(b) Base-n system
(c) Place value
(d) Mapping

Answer: B

Question. Landmark numbers of base-n system are starting from
(a) 0
(b) Powers of n
(c) Multiples of n
(d) Sum of n

Answer: B

Question. Roman symbol for number 1 is
(a) V
(b) X
(c) I
(d) L

Answer: C

Question. Roman symbol for number 5 is
(a) I
(b) V
(c) X
(d) L

Answer: B

Question. In the Roman number system, what new symbol is introduced to represent 50?
(a) C
(b) D
(c) L
(d) X

Answer: C

Question. Value of Roman symbol X is
(a) 5
(b) 10
(c) 50
(d) 100

Answer: B

Question. Roman symbol L is used for
(a) 10
(b) 50
(c) 100
(d) 500

Answer: B

Question. Value of Roman symbol C will be
(a) 50
(b) 100
(c) 500
(d) 1000

Answer: B

Question. People in Papua New Guinea use what for counting?
(a) Sticks only
(b) Body parts
(c) Modern calculator
(d) Only stones

Answer: B

Question. Mathematician who explained Indian system of 10 symbols is
(a) Fibonacci
(b) Al-Kindi
(c) Aryabhata
(d) Laplace

Answer: C

Question. Indian number system reached Arab world around
(a) 100 CE
(b) 400 CE
(c) 800 CE
(d) 1500 CE

Answer: C

Question. Why did European scholars call Indian numerals "Arabic numerals"?
(a) To reflect their European perspective, as they learned them from the Arab world
(b) Due to a mistranslation of Indian texts
(c) Because Arab scholars preferred this term
(d) Because they were invented in the Arab world

Answer: A

Question. Persian mathematician who popularized Hindu numerals is
(a) Aryabhata
(b) Al-Khwarizmi
(c) Brahmagupta
(d) Fibonacci

Answer: B

Question. Word algorithm is named after which person?
(a) Al-Kindi
(b) Fibonacci
(c) Al-Khwarizmi
(d) Aryabhata

Answer: C

Question. Gumulgal name for number 2 is
(a) Urapon
(b) Ukasar
(c) Ahage
(d) Xa

Answer: B

Question. In Gumulgal system, number 3 is called
(a) Ukasar-ukasar
(b) Ukasar-urapon
(c) Ras
(d) Urapon-urapon

Answer: B

Question. Marks cut on bone or cave walls are called
(a) Tally marks
(b) Drawing
(c) Painting
(d) Mapping

Answer: A

Question. Around how many years ago did a civilization flourish in Mesopotamia, where strange symbols were used for numbers?
(a) 3000 years ago
(b) 4000 years ago
(c) 5000 years ago
(d) 2000 years ago

Answer: B

Question. Ishango bone was discovered in
(a) India
(b) South Africa
(c) Democratic Republic of Congo
(d) Australia

Answer: C

Question. Mesopotamian system in later times used base
(a) 10
(b) 20
(c) 60
(d) 100

Answer: C